Physaria newberryi |
Physaria subumbellata |
|||||
---|---|---|---|---|---|---|
Newberry twinpod, Newberry's twinpod |
parasol bladderpod |
|||||
Habit | Perennials; caudex simple or branched, (branches often covered with persistent leaf bases, cespitose); densely (silvery) pubescent, trichomes rays fused at least 1/2 their length. | Perennials; caudex simple or branched, (usually covered with persistent leaf bases, cespitose); densely pubescent, trichomes (closely appressed), rays distinct, usually bifurcate. | ||||
Stems | several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm. |
several from base, erect, (unbranched, slender), 0.1–0.6 dm. |
||||
Basal leaves | (ascending to erect, petiole slender); blade oblanceolate to obovate, 3–8 cm, (base tapering to petiole), margins incised or dentate with broad teeth, (apex acute to obtuse). |
blade rhombic to obovate, 2–4 cm, margins entire. |
||||
Cauline leaves | blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire. |
blade linear-oblanceolate, similar to basal. |
||||
Racemes | dense (elongated or not in fruit, 2.5–8.5(–10) cm). |
dense (distally, subumbellate). |
||||
Flowers | sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate); petals spatulate to narrowly oblanceolate, 7–10(–12) mm. |
sepals (yellowish), oblong to elliptic, 3.5–7 mm, (median pair usually thickened apically, cucullate); petals lingulate to spatulate, 4–7 mm. |
||||
Fruiting pedicels | (divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels). |
(divaricate-ascending), 3–5 mm, (densely pubescent). |
||||
Fruits | didymous, sides curved and angular, highly inflated, 6–16 × 8–12 mm, (papery, apical sinus broad and concave); valves (retaining seeds after dehiscence, distinctly 2-keeled on side away from replum), pubescent, trichomes appressed; replum linear to linear-lanceolate, as wide as or wider than fruit, apex acute; ovules 4–8 per ovary; style 2–9 mm, (usually not exceeding sinus). |
(erect), ovate to suborbicular, compressed apically (latiseptate), 3–4 mm; valves pubescent; replum ovate to obovate; ovules 4–6 per ovary; style 2–3 mm. |
||||
Seeds | slightly flattened, (ovate). |
plump. |
||||
2n | = 10. |
|||||
Physaria newberryi |
Physaria subumbellata |
|||||
Phenology | Flowering Apr–Jun. | |||||
Habitat | Rocky high ridges, gravel and stony areas, juniper covered knolls, rock crevices, clay hillsides, pinyon-juniper areas, calcareous substrates | |||||
Elevation | 1600-2700 m (5200-8900 ft) | |||||
Distribution |
AZ; NM; NV; UT
|
CO; UT; WY
|
||||
Discussion | Subspecies 2 (2 in the flora). Physaria newberryi, with its unusual fruits, can be confused with 15. P. chambersii. In P. chambersii, the sides of the fruit are flat, the style always exceeds the top, or shoulders, of the fruit, and shoulders form an angle that does not curve in toward the style. In P. newberryi, the sides of the fruit are concave, the styles are shorter than shoulders of the silicle (except in subsp. yesicola), and shoulders of the silicle form a curved, inward arching crown on the fruit. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|||||
Key |
|
|||||
Source | FNA vol. 7, p. 652. | FNA vol. 7, p. 663. | ||||
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | P. didymocarpa var. newberryi | Lesquerella subumbellata | ||||
Name authority | A. Gray: in J. C. Ives, Rep. Colorado R. 4: 6. (1861) | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 328. (2002) | ||||
Web links |