Flora of North America species comparison

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Clarkia purpurea

purple clarkia, winecup clarkia, winecup fairyfan
Stems

erect or rarely decumbent, to 100 cm, glabrous and sometimes glaucous or sparsely to densely puberulent, sometimes mixed with longer, spreading hairs.
Leaves

petiole 0–2 mm;

blade linear or narrowly lanceolate to elliptic or ovate, 1.5–7 cm.
Inflorescences

open or dense racemes, axis straight;

buds erect.
Flowers

floral tube 2–10 mm;

sepals reflexed individually or in pairs;

corolla bowl-shaped, petals lavender to purple, purplish red, or dark wine-red, often with red or purple spot near middle, tip, or base, 9–25 mm;

stamens 8, subequal;

ovary 8-grooved, length less than 8 times width;

stigma as long as or exserted beyond anthers.
Capsules

10–30 mm, beak 0–2 mm.
Seeds

brown or gray, 1–2 mm, scaly, crest 0.2 mm.

Clarkia purpurea
Distribution
from USDA
w North America; nw Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 3 (3 in the flora).

Clarkia purpurea consists of a diverse assemblage of hexaploid populations and is almost certainly derived from multiple origins followed by hybridization and, perhaps, backcrossing to parental species. Three morphological forms are recognized as subspecies; intergrades are frequent.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Leaf blades broadly lanceolate to elliptic or ovate; inflorescences dense racemes.
subsp. purpurea
1. Leaf blades linear to lanceolate or narrowly lanceolate; inflorescences usually open racemes.
→ 2
2. Petals 15–25 mm; stigmas exserted beyond anthers.
subsp. viminea
2. Petals 9–14 mm; stigmas not exserted beyond anthers.
subsp. quadrivulnera
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Clarkia > sect. Godetia
Sibling taxa
C. affinis, C. amoena, C. arcuata, C. australis, C. biloba, C. borealis, C. bottae, C. breweri, C. concinna, C. cylindrica, C. davyi, C. delicata, C. dudleyana, C. epilobioides, C. exilis, C. franciscana, C. gracilis, C. heterandra, C. imbricata, C. jolonensis, C. lassenensis, C. lewisii, C. lingulata, C. mildrediae, C. modesta, C. mosquinii, C. prostrata, C. pulchella, C. rhomboidea, C. rostrata, C. rubicunda, C. similis, C. speciosa, C. springvillensis, C. stellata, C. tembloriensis, C. unguiculata, C. virgata, C. williamsonii, C. xantiana
Subordinate taxa
C. purpurea subsp. purpurea, C. purpurea subsp. quadrivulnera, C. purpurea subsp. viminea
Synonyms Oenothera purpurea, Godetia purpurea
Name authority (Curtis) A. Nelson & J. F. Macbride: Bot. Gaz. 65: 64. (1918)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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