Physaria fendleri |
Physaria sessilis |
|
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Fendler bladderpod, Fendler's bladderpod |
sessile bladderpod |
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Habit | Perennials; caudex branched, (sometimes woody at base); densely (silvery) pubescent, trichomes (sessile or short-stalked), several-rayed, rays not furcate, fused (webbed) ca. 1/2 their length, (tuberculate throughout or tubercles scarce or absent over center). | Annuals or biennials; with a fine taproot; densely pubescent, trichomes (sessile or short-stalked), 4–6-rayed, rays usually furcate, rarely bifurcate, (moderately tuberculate or nearly smooth). |
Stems | several from base, erect or laterally decumbent, (usually unbranched), (0.3–)0.5–2.5(–4) dm. |
simple or few to several from base, erect, (often distal 1/2 branched), to 6 dm. |
Basal leaves | blade linear to somewhat elliptic, 1–4(–8) cm, margins entire or coarsely dentate. |
blade oblanceolate, to 9 cm, margins entire, dentate, or sinuate to lyrate-pinnatifid. |
Cauline leaves | (shortly petiolate); blade usually linear to narrowly oblanceolate, rarely elliptic to rhombic, 0.5–2.5 cm, (base narrowing to petiole), margins entire or remotely dentate (sometimes involute). |
(proximal shortly petiolate, distal sessile); blade narrowly elliptic to linear, 2–4(–6) cm, margins entire or repand to shallowly dentate. |
Racemes | loose to somewhat dense. |
loose. |
Flowers | sepals elliptic to oblong, 5–8 mm, (lateral pair not saccate, median pair often thickened apically, ± cucullate); petals (usually orange or orange-yellow at junction of blade and claw, sometimes also with orange guidelines), obdeltate to obovate, 8–12 mm, (claw relatively short). |
sepals elliptic or elongate-ovate, 3.4–5.2(–6.5) mm, (lateral pair subsaccate, median pair thickened apically, cucullate); petals obovate or deltate, 5–10 mm, (sometimes with short claw, margins undulate). |
Fruiting pedicels | (divaricate-spreading to erect, usually straight or slightly curved, occasionally sigmoid), 8–20(–40) mm. |
(divaricate-ascending to widely spreading, straight), 8–20 mm. |
Fruits | globose, broadly ellipsoid, or ovoid, not or slightly inflated, 5–8 mm, (firm, apex usually acute); valves (not retaining seeds after dehiscence, often reddish in age), glabrous throughout; replum as wide as or wider than fruit; ovules (12–)20–32(–40) per ovary; style (2–)3–6 mm. |
globose or subglobose, sometimes slightly compressed, 3–6 mm; valves (not retaining seeds after dehiscence), densely papillose, densely pubescent inside, trichomes raised; replum as wide as or wider than fruit; ovules 8–18 per ovary; style 1.5–3.5 mm. |
Seeds | flattened. |
flattened. |
2n | = 12, 14, 24. |
= 12. |
Physaria fendleri |
Physaria sessilis |
|
Phenology | Flowering Mar–May. | Flowering and fruiting Apr–Jun. |
Habitat | Limestone outcrops, gypseous hills, gravels, sandy washes, rocky slopes, bluffs, shallow drainage areas, plains and desert shrub areas | Limestone chip, black soils, grassy roadsides, fields, limestone, oak woodlands, mesquite brush lands, pastures, open dry hills |
Elevation | 100-2000 m (300-6600 ft) | 30-700 m (100-2300 ft) |
Distribution |
AZ; CO; KS; NM; OK; TX; UT; Mexico (Chihuahua, Coahuila, Nuevo León)
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TX |
Discussion | In dry areas, Physaria fendleri may flower following suitable rains at any time of the year. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 7, p. 636. | FNA vol. 7, p. 663. |
Parent taxa | Brassicaceae > tribe Physarieae > Physaria | Brassicaceae > tribe Physarieae > Physaria |
Sibling taxa | ||
Synonyms | Vesicaria fendleri, Alyssum fendleri, Alyssum stenophyllum, Lesquerella fendleri, Lesquerella foliacea, Lesquerella praecox, Lesquerella stenophylla, Vesicaria stenophylla, Vesicaria stenophylla var. diffusa, Vesicaria stenophylla var. humilis, Vesicaria stenophylla var. procera | Lesquerella gracilis var. sessilis, Lesquerella sessilis |
Name authority | (A. Gray) O’Kane & Al-Shehbaz: Novon 12: 323. (2002) | (S. Watson) O’Kane & Al-Shehbaz: Novon 12: 328. (2002) |
Web links |