Gayophytum decipiens |
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deceiving gayophytum, deceptive groundsmoke |
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Habit | Herbs glabrous or villous to strigillose. |
Stems | erect or proximalmost branches decumbent, branched throughout, usually with 2–8 nodes between branches, branching usually not dichotomous, 5–50 cm. |
Leaves | somewhat reduced distally, 10–32 × 1–4 mm; petiole 0–5 mm; blade narrowly lanceolate to sublinear. |
Inflorescences | with flowers arising as proximally as first 1–5 nodes from base. |
Flowers | sepals 0.7–1.1 mm, reflexed singly; petals 1.1–1.8 mm; pollen 90–100% fertile; stigma subglobose, surrounded by anthers at anthesis. |
Capsules | usually ascending, rarely reflexed, not conspicuously flattened, 6–15 × 0.6–1 mm, with inconspicuous constrictions between seeds, valve margins slightly undulate, all valves free from septum after dehiscence, septum straight; pedicel 0–5 mm. |
Seeds | 10–25, all developing, arranged ± parallel to septum and subopposite seeds in adjacent locule, forming 2 even rows in capsule, light brown, sometimes mottled with dark brown, 0.8–1.8 × 0.3–0.7 mm, glabrous or densely puberulent. |
2n | = 14. |
Gayophytum decipiens |
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Phenology | Flowering May–Sep. |
Habitat | Sandy or gravely soil, in pinyon-juniper woodlands and pine forests, desert ranges, mountains bordering desert areas. |
Elevation | 1800–4200 m. (5900–13800 ft.) |
Distribution |
AZ; CA; CO; ID; MT; NV; OR; UT; WA; WY; MMex
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Discussion | Gayophytum decipiens may be one of the parents of the allotetraploid species G. racemosum. Since some collections of the tetraploid G. diffusum subsp. parviflorum closely resemble G. decipiens, the latter has probably contributed to the extensive variation in the G. diffusum polyploid complex. Among the diploid species, G. decipiens is most similar to G. ramosissimum but can be distinguished by its branching habit and capsules. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 10. |
Parent taxa | Onagraceae > subfam. Onagroideae > tribe Onagreae > Gayophytum |
Sibling taxa | |
Name authority | H. Lewis & Szweykowski: Brittonia 16: 368, figs. 5H, 6C. (1964) |
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