Physaria calcicola |
Physaria intermedia |
|
---|---|---|
Rocky Mountain bladderpod |
mid-bladderpod |
|
Habit | Perennials; (compact); caudex branched; densely (silvery) pubescent, trichomes (sessile or short-stalked), 5–8-rayed, rays distinct, furcate or bifurcate, (umbonate, tuberculate and the center less so). | Perennials; caudex (buried), branched, (thickened with persistent leaf bases, cespitose); densely pubescent (usually grayish-green), trichomes (sessile or short stalked, spreading), several-rayed, rays furcate or bifurcate, slightly fused at base, (tuberculate or finely tuberculate). |
Stems | several from base, erect or outer ones decumbent, (unbranched, stout, usually sparsely leaved), 1–3 dm. |
several from base, erect to decumbent, (unbranched, stout, densely leafy sterile shoots sometimes present), (0.5–)4–2.5 dm. |
Basal leaves | blade linear, 2–7(–10) cm, margins entire, repand, or shallowly dentate. |
(clustered at stem base); blade linear to linear-oblanceolate, 2–5 cm, margins entire, usually involute, sometimes flattened, (apex obtuse to subacute). |
Cauline leaves | (sessile); blade (erect), spatulate to linear, (1–)2–3(–4.5) cm, margins entire, sometimes involute, (apex acute or subacute). |
blade linear-oblanceolate to linear, 1–3.5(–4.5) cm, margins entire, usually involute. |
Racemes | dense, (exceeding basal leaves). |
compact, (often nearly subumbellate). |
Flowers | sepals ovate or oblong, (4.5–)5–6(–7) mm, (lateral pair subsaccate, cucullate, median pair thickened, cucullate apically); petals spatulate, 7–9(–11) mm (widened at base, slightly retuse). |
sepals (yellowish or greenish yellow), ovate or oblong, 4.5–7.5(–9) mm, (lateral pair sometimes cucullate, median pair tapering at both ends, thickened apically, cucullate); petals spatulate or oblong, 6.5–10.5(–15) mm, (base sometimes widened, apex rounded or retuse). |
Fruiting pedicels | (spreading, sharply sigmoid), 8–15 mm. |
(often expanded distally, ascending or recurved, usually straight or slightly curved, rarely nearly sigmoid), 4–15 mm, (stout). |
Fruits | (sessile or substipitate), ovate to oblong, not compressed at distal margins or apex, 5–9 mm; valves sparsely pubescent, trichomes appressed; ovules 4–8 per ovary; style 3–5 mm. |
(sessile or substipitate), subglobose to slightly ovoid, usually inflated, rarely compressed or obcompressed, 4–6(–10) mm, (apex acute, slightly flattened); valves sparsely pubescent, trichomes appressed; ovules (8–)12–16(–20) per ovary; style (2–)3–4.5(–5.5) mm. |
Seeds | flattened. |
flattened. |
2n | = 16, ca. 20. |
= 18, 20, 36. |
Physaria calcicola |
Physaria intermedia |
|
Phenology | Flowering May–Jun. | Flowering Apr–Aug. |
Habitat | Shale bluffs, limestone hillsides, gypseous knolls and ravines, calcareous substrates, grasslands and pinyon-juniper communities | Dry sandy, gravelly, or rocky soil, claylike hillsides, open chiprock, dry stream beds, gravel bars, open knolls, open pinyon-juniper woods, open stands of sagebrush, Gambel oak or ponderosa pine communities, calcareous substrates |
Elevation | 1400-2100 m (4600-6900 ft) | 1600-2400 m (5200-7900 ft) |
Distribution |
CO; NM
|
AZ; NM; UT
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
N. H. Holmgren (2005b) pointed out that the lectotype and other material from New Mexico, where Physaria intermedia is very infrequent, is quite similar to P. parvula from northern Colorado and northeastern Utah; it is also quite similar to, but less robust than, P. pulvinata from southwestern Colorado. The material from Arizona, northwestern New Mexico, and Utah may represent an unnamed taxon; further study is needed. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 629. | FNA vol. 7, p. 644. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Lesquerella calcicola | Lesquerella alpina var. intermedia, Lesquerella intermedia |
Name authority | (Rollins) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) | (S. Watson) O’Kane & Al-Shehbaz: Novon 12: 324. (2002) |
Web links |