Bloom Clock/Keys/Southeastern Pennsylvania/May/Yellow Flowers/Herbaceous

< Bloom Clock < Keys < Southeastern Pennsylvania < May < Yellow Flowers

This page is part of a dichotomous key for plants recorded as blooming in Southeastern Pennsylvania during the month of May.
These plants have the following traits:

Yellow flowers
are herbaceous

Taraxacum officinale

Head

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Profile for Taraxacum officinale (Common Dandelion)

Identifying Characteristics
Habit:	rosette-forming herbaceous plant with a long taproot
Flowers:	Head, flowers are all ray-like
Foliage:	Basal only, pinnately lobed
Stem:	flower stems are hollow with a milky sap
Scent:	mild, "sunny"
Growing Conditions:	sunny and partly-shaded, well drained soils, drought intolerant
Fruit:	achene with a silky pappus
Similar Plants:	Hypochoeris radicata, Sonchus

Recent Logs

Jomegat 02:17, 7 April 2010 (UTC)
Anna reg 10:13, 17 April 2010 (UTC)
Trinity507 16:17, 22 April 2010 (UTC)
Trinity507 03:48, 4 May 2010 (UTC)
Anna gdf 11:38, 11 May 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Winter, Late Winter, Early Spring, Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Early Fall, Mid Fall, Late Fall, Early Winter

Regional data and additional images for Taraxacum officinale

Euphorbia lathyris

Flowering plant

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Profile for Euphorbia lathyris (Caper Spurge)

Identifying Characteristics

Recent Logs

SB_Johnny May 15 2007 (from photographs)
--SB_Johnny | ^talk 10:31, 4 July 2007 (UTC)
--SB_Johnny | ^talk 11:56, 1 December 2007 (UTC)
--SB_Johnny | ^talk 10:12, 17 May 2008 (UTC)
--SB_Johnny | ^talk 09:47, 27 May 2008 (UTC)
--SB_Johnny | ^talk 08:54, 2 June 2008 (UTC)
--SB_Johnny | ^talk 09:07, 20 July 2008 (UTC)
--SB_Johnny ^talk 09:05, 16 August 2008 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer, Mid Summer, Early Winter

Regional data and additional images for Euphorbia lathyris

Corydalis lutea

Flowers and foliage

Wikipedia • Commons • Wikibooks (horticulture) • Wikibooks (subject) • Wikispecies • Fruit and seed clock

Profile for Corydalis lutea (Yellow Corydalis)

Identifying Characteristics
Habit:	Mound-forming, colonizing herbaceous plant
Flowers:	Tubular, spurred, yellow
Foliage:	Pinnately compound, somewhat glaucus
Stem:	Weak, sappy
Fruit:	Explosive pods

Recent Logs

SB Johnny-LM 29 April 2008 (from written logs)
--SB_Johnny | ^talk 10:09, 17 May 2008 (UTC)
--SB_Johnny | ^talk 09:30, 27 May 2008 (UTC)
--SB_Johnny | ^talk 08:45, 2 June 2008 (UTC)
--SB_Johnny | ^talk 09:57, 20 July 2008 (UTC)
--SB_Johnny ^talk 11:55, 23 September 2008 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Early Fall, Mid Fall, Late Fall, Early Winter

Regional data and additional images for Corydalis lutea

Allium

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Profile for Allium (Onion, Garlic, Leek, etc.)

Identifying Characteristics
Subclass plants:	BCP/Allium aflatunense, BCP/Allium canadense, BCP/Allium cernuum, BCP/Allium flavum, BCP/Allium sativum, BCP/Allium schoenoprasum, BCP/Allium ursinum, BCP/Allium vineale

Recent Logs

SB_Johnny-LM May 16 2007 (from photographs)
Ngravagna 16:51, 22 May 2008 (UTC)

(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer, Mid Summer

Regional data and additional images for Allium

Fragaria vesca

flowering plant

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Profile for Fragaria vesca (Woodland Strawberry)

Identifying Characteristics

Recent Logs

--Anna gdf 11:56, 11 May 2010 (UTC)
Anna reg 11:06, 9 May 2011 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Late Summer, Early Fall

Regional data and additional images for Fragaria vesca

Narcissus

A Jonquil flower

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Profile for Narcissus (Daffodil, Jonquil, Narcissus)

Identifying Characteristics
Habit:	Upright herbaceous plants
Foliage:	Basal, straplike, slightly bluish
Subclass plants:	Narcissus pseudonarcissus

Recent Logs

Anna reg 12:05, 12 April 2010 (UTC)
Sb f 14:46, 6 March 2011 (UTC) (plants blooming in the microclimate by the springhouse, elsewhere not flowering)
Anna reg 18:35, 24 March 2011 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Early Spring, Mid Spring, Late Spring

Regional data and additional images for Narcissus

Waldsteinia fragarioides

flowering plant (purple flowers are Vinca minor)

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Profile for Waldsteinia fragarioides (Barren Strawberry)

Identifying Characteristics
Habit:	Creeping herbaceous plant

Recent Logs

--SB_Johnny | ^talk 11:33, 26 April 2007 (UTC)
--SB_Johnny | ^talk 17:27, 29 April 2007 (UTC)
--SB_Johnny | ^talk 11:26, 4 May 2007 (UTC)
SB Johnny-LM 00:23, 17 April 2008 (UTC)
--SB_Johnny | ^talk 12:12, 26 April 2008 (UTC)
--SB_Johnny | ^talk 12:06, 4 May 2008 (UTC)

(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring

Regional data and additional images for Waldsteinia fragarioides

Tulipa

flowering plants

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Profile for Tulipa (Tulip)

Identifying Characteristics

Recent Logs

Anna gdf 17:22, 20 April 2011 (UTC)
Anna reg 15:15, 25 March 2011 (UTC)
Anna reg 11:48, 12 April 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring

Regional data and additional images for Tulipa

Stylophorum diphyllum

Flowers

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Profile for Stylophorum diphyllum (Celandine poppy)

Identifying Characteristics
Flowers:	4 showy petals, numerous anthers, all yellow
Foliage:	hairy beneath and on the petioles
Fruit:	pods
Life Cycle:	perennial

Recent Logs

SB_Johnny-LM 27 April, 2007 (from photographic log)
SB_Johnny-LM May 13 2007 (from photographs)
SB Johnny-LM 11:40, 7 July 2007 (UTC)
SB_Johnny-LM 10:57, 20 April 2008 (UTC)
SB Johnny-LM 11:28, 4 June 2008 (UTC)

(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer, Mid Summer

Regional data and additional images for Stylophorum diphyllum

Alchemilla mollis

Inflorescences and foliage

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Profile for Alchemilla mollis (Lady's Mantle)

Identifying Characteristics

Recent Logs

--SB_Johnny | ^talk 08:59, 25 June 2008 (UTC)
--SB_Johnny | ^talk 09:08, 2 July 2008 (UTC)
--SB_Johnny ^talk 12:21, 9 August 2008 (UTC)
--SB_Johnny ^talk 09:16, 5 September 2008 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer, Mid Summer

Regional data and additional images for Alchemilla mollis

Iris

Flower of Iris versicolor

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Profile for Iris (Iris)

Identifying Characteristics

Recent Logs

Jomegat 22:24, 18 May 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer

Regional data and additional images for Iris

Digitalis lutea

Spike

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Profile for Digitalis lutea (Yellow Foxglove)

Identifying Characteristics
Habit:	Upright herbaceous plant
Flowers:	On spikes, tubular and yellow
Foliage:	Simple
Life Cycle:	Perennial

Recent Logs

(no logs yet)
(view all logs)

Global data:

Regional data and additional images for Digitalis lutea

Coreopsis lanceolata

Head

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Profile for Coreopsis lanceolata (Lanceleaf Tickseed)

Identifying Characteristics

Recent Logs

SB Johnny-LM 19:50, 30 May 2007 (UTC)
SB Johnny-LM 19:32, 2 July 2007 (UTC)
SB Johnny-LM 11:03, 31 May 2008 (UTC)
SB Johnny-LM 12:08, 4 June 2008 (UTC)
Ngravagna 02:23, 9 June 2008 (UTC)
Ngravagna 19:58, 15 June 2008 (UTC)
Ngravagna 17:23, 21 June 2008 (UTC)
Ngravagna 18:26, 28 June 2008 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer, Mid Summer

Regional data and additional images for Coreopsis lanceolata

Barbarea vulgaris

Closeup of flowers

Wikipedia • Commons • Wikibooks (horticulture) • Wikibooks (subject) • Wikispecies • Fruit and seed clock

Profile for Barbarea vulgaris (Yellow Rocketcress)

Identifying Characteristics
Habit:	Upright
Flowers:	Corymbs of yellow flowers, 4 petals.
Foliage:	Glossy dark green, pinnately lobed or divided with a large terminal leaflet or lobe
Stem:	green, stiff
Life Cycle:	Biennial
Similar Plants:	Barbarea verna, Rorippa sylvestris

Recent Logs

Jomegat 00:36, 12 May 2009 (UTC)
Jomegat 00:14, 21 May 2009 (UTC)
Jomegat 01:32, 1 June 2009 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer

Regional data and additional images for Barbarea vulgaris

Chelidonium majus

Flowers, foliage, and buds

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Profile for Chelidonium majus (Greater Celandine)

Identifying Characteristics
Habit:	Upright herbaceous plant
Flowers:	4 showy petals, many anthers, yellow.
Foliage:	Pinnately compound with lobed leaflets.

Recent Logs

Jomegat 23:24, 5 May 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Early Fall

Regional data and additional images for Chelidonium majus

Duchesnea indica

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Profile for Duchesnea indica (Mock Strawberry)

Identifying Characteristics
Habit:	Creeping herbaceous plant
Flowers:	5 yellow petals
Foliage:	Trifoliate, roughly haired, dark green
Fruit:	Strawberry-like but with red seeds
Life Cycle:	Perennial

Recent Logs (flowers)

--SB_Johnny | ^talk 14:36, 16 September 2007 (UTC)
--SB_Johnny | ^talk 13:12, 24 October 2007 (UTC)
--SB_Johnny | ^talk 13:09, 1 November 2007 (UTC)
--SB_Johnny | ^talk 13:37, 20 April 2008 (UTC)
--SB_Johnny | ^talk 10:24, 27 April 2008 (UTC)
SBJ 10:35, 22 May 2008 (UTC)
--SB_Johnny | ^talk 08:53, 2 June 2008 (UTC)
--SB_Johnny | ^talk 09:49, 2 July 2008 (UTC)
--SB_Johnny | ^talk 09:53, 14 July 2008 (UTC)
--SB_Johnny ^talk 09:25, 31 August 2008 (UTC)

(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer, Mid Summer, Early Fall, Mid Fall, Late Fall

Regional data and additional images for Duchesnea indica

Senecio vulgaris

Stems and flowers

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Profile for Senecio vulgaris (Common Groundsel)

Identifying Characteristics
Habit:	Low growing but upright herbaceous plant
Flowers:	Enclosed heads

Recent Logs

Jomegat 16:41, 18 May 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Winter, Late Winter, Early Spring, Mid Spring, Late Spring, Early Summer, Mid Summer, Late Fall

Regional data and additional images for Senecio vulgaris

Linaria vulgaris

Inflorescences

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Profile for Linaria vulgaris (Butter and Eggs)

Identifying Characteristics
Habit:	spreading herbaceous plant
Flowers:	Snapdragon-like, yellow
Foliage:	Simple, covered in a white, waxy bloom
Stem:	Weak
Scent:	None
Fruit:	Dry capsules
Life Cycle:	Perennial

Recent Logs

Jomegat 21:38, 22 June 2010 (UTC)
Anna reg 12:48, 20 October 2011 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer, Mid Summer, Late Summer, Mid Fall, Late Fall

Regional data and additional images for Linaria vulgaris

Matricaria discoidea

Heads

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Profile for Matricaria discoidea (Pineappleweed)

Identifying Characteristics
Habit:	Herbaceous forb
Flowers:	Discoid heads
Foliage:	The leaves are pinnately dissected and sweet-scented when crushed.
Stem:	The plant grows 3 to 12 inches (7.5 - 30 cm) high.
Scent:	The flowers exude a chamomile/pineapple aroma when crushed.
Growing Conditions:	Disturbed areas, especially those with poor, compacted soil. It can be seen blooming on footpaths, roadsides, and similar places in spring and early summer.
Life Cycle:	Annual

Recent Logs

Jomegat 22:58, 1 June 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Late Spring, Early Summer, Mid Summer

Regional data and additional images for Matricaria discoidea

Oxalis stricta

Flowers and foliage

Wikipedia • Commons • Wikibooks (horticulture) • Wikibooks (subject) • Wikispecies • Fruit and seed clock

Profile for Oxalis stricta (Common Yellow Woodsorrel)

Identifying Characteristics
Habit:	Upright
Flowers:	5 petals, yellow
Foliage:	Trifoliate, leaflets heart-shaped
Stem:	Slender, green
Fruit:	Explosive capsules
Life Cycle:	Annual

Recent Logs

Jomegat 17:01, 27 May 2010 (UTC)
Anna reg 29 May 2010 (Photo)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Early Fall, Mid Fall, Late Fall

Regional data and additional images for Oxalis stricta

Packera obovata

Flowers

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Profile for Packera obovata (Golden Ragwort)

Identifying Characteristics

Recent Logs

--SB_Johnny | ^talk 10:40, 17 May 2008 (UTC)
--SB_Johnny | ^talk 10:18, 27 May 2008 (UTC)
--SB_Johnny | ^talk 11:09, 4 June 2008 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer

Regional data and additional images for Packera obovata

Oxalis corniculata

Plant with flowers, showing the purple foliage

Wikipedia • Commons • Wikibooks (horticulture) • Wikibooks (subject) • Wikispecies • Fruit and seed clock

Profile for Oxalis corniculata (Creeping Woodsorrel)

Identifying Characteristics
Habit:	Creeping, rooting at the nodes
Flowers:	Yellow, 5-petaled
Foliage:	Trifoliate with heart-shaped leaflets, usually purple
Fruit:	Explosive capsules

Recent Logs

--SB_Johnny | ^talk 10:29, 27 May 2008 (UTC)
--SB_Johnny | ^talk 09:48, 2 July 2008 (UTC)
--SB_Johnny | ^talk 10:21, 14 July 2008 (UTC)
Jomegat 23:20, 12 August 2008 (UTC)
Jomegat 17:59, 7 October 2008 (UTC)
Jomegat 16:31, 10 October 2008 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Early Fall, Mid Fall

Regional data and additional images for Oxalis corniculata

Ranunculus

Flower of r. repens

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Profile for Ranunculus (Buttercup)

Identifying Characteristics
Subclass plants:	R. ficaria

Recent Logs

Jomegat 00:19, 7 May 2010 (UTC)
Anna gdf 11:41, 11 May 2010 (UTC)
(view all logs)

Global data:
Temperate zone season(s): Early Spring, Mid Spring

Regional data and additional images for Ranunculus

Last updated 12:53, 1 January 2008 (UTC) from the DPL page with 23 plants.

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