Oenothera deltoides |
Oenothera deltoides subsp. piperi |
|||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
basket evening-primrose, birdcage evening primrose, desert lantern, devil's lantern, dune primrose, hairy evening primrose, lion-in-a-cage |
Piper's desert lantern |
|||||||||||||||||
Habit | Herbs usually winter-annual, sometimes perennial, glabrous, glandular puberulent, strigillose, and/or villous, sometimes more villous distally, hairs sometimes very curly, especially on flower parts; from a taproot or relatively long, fleshy roots. | Herbs annual, usually villous, hairs relatively long, curly, especially distally and on buds, sometimes glabrous; from a taproot. | ||||||||||||||||
Stems | central stem usually erect, usually thickened at base and spongy, branched or unbranched, branches few–several, slender, decumbent to ascending, from base, usually encircling central stem in older plants, 10–40(–100) cm. |
central stem thickened proximally, unbranched or with several lateral, ascending to decumbent branches, 3–30(–40) cm. |
||||||||||||||||
Leaves | in a basal rosette and cauline, rosette usually well developed (except subsp. howellii), basal 5–25 × 1–5 cm, cauline 4–12(–18) × 0.5–4 cm; petiole 1.5–8 cm; blade rhombic-obovate, lanceolate, or oblanceolate, margins subentire, dentate, or pinnatifid. |
basal and cauline; blade rhombic, becoming lanceolate distally, margins deeply sinuate-dentate to pinnatifid. |
||||||||||||||||
Flowers | 1–several opening per day near sunset; buds nodding, weakly or strongly quadrangular or fluted in distal 1/2, with free tips 0–9 mm; floral tube 20–40 mm; sepals (13–)15–35 mm, not spotted; petals white, fading pink to deep pink, broadly obovate or obcordate, 15–44 mm; filaments 8–15 mm, anthers 5–14 mm; style 35–60 mm, stigma exserted beyond anthers at anthesis. |
buds fluted or strongly quadrangular in distal 1/2, without free tips; sepals 13–22(–27) mm; petals 15–25(–30) mm. |
||||||||||||||||
Capsules | spreading, straight to curved, becoming somewhat woody in age, cylindrical to slightly 4-angled, widest toward base, tapering from base to apex, (15–)30–80 × 1.5–5 mm; sessile. |
15–25(–30) × 3–5 mm. |
||||||||||||||||
Seeds | numerous, in 1 row per locule, buff with dark spots or black, narrowly obovoid, 1.5–2.8 mm. |
|||||||||||||||||
2n | = 14. |
|||||||||||||||||
Oenothera deltoides |
Oenothera deltoides subsp. piperi |
|||||||||||||||||
Phenology | Flowering (Mar–)Jun–Jul(–Sep). | |||||||||||||||||
Habitat | Sandy soil or dunes in Great Basin Desert with Artemisia, Ericameria, or Sarcobatus. | |||||||||||||||||
Elevation | 900–1900 m. (3000–6200 ft.) | |||||||||||||||||
Distribution |
w United States; nw Mexico
|
CA; NV; OR |
||||||||||||||||
Discussion | Subspecies 5 (5 in the flora). Oenothera deltoides is self-incompatible or self-compatible (W. M. Klein 1964; W. L. Wagner et al. 2007; K. E. Theiss et al. 2010). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
W. M. Klein (1964) determined subsp. piperi to be self-incompatible. It occurs in the northern part of the range of O. deltoides, from northeastern California to southern Oregon and the western half of Nevada. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||||||||||
Key |
|
|||||||||||||||||
Source | FNA vol. 10. | FNA vol. 10. | ||||||||||||||||
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Anogra | Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Anogra > Oenothera deltoides | ||||||||||||||||
Sibling taxa | ||||||||||||||||||
Subordinate taxa | ||||||||||||||||||
Synonyms | Anogra deltoides | O. deltoides var. piperi, O. trichocalyx var. piperi | ||||||||||||||||
Name authority | Torrey & Frémont in J. C. Frémont: Rep. Exped. Rocky Mts., 315. (1845) | (Munz) W. M. Klein: Aliso 5: 180. (1962) | ||||||||||||||||
Web links |