Difference between revisions of "Physaria pulvinata"
Brittonia 58: 74, fig. 1. 2006.
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|tribe=Brassicaceae tribe Physarieae | |tribe=Brassicaceae tribe Physarieae | ||
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Latest revision as of 22:30, 5 November 2020
Perennials; caudex (buried), branched, (dense, forming hard mats); densely pubescent, trichomes (subsessile), 8–13-rayed, rays usually furcate, distinct, (umbonate, usually tuberculate, less so over umbo). Stems several (to several hundred) from base, erect, (each terminating in a tufted cluster of leaves), to 7 dm. Basal leaves: (petiole not differentiated from blade); blade narrowly elliptic to narrowly linear-oblanceolate, (0.8–)1–1.5 cm, (base cuneate), margins entire. Cauline leaves similar to basal, blade sometimes linear, (apex acute). Racemes dense, (often ± subumbellate, somewhat elongated in fruit). Fruiting pedicels (strongly sigmoid), 5–10 mm. Flowers: sepals narrowly elliptic, 2.5–3.5(–4) mm, (not keeled); petals narrowly spatulate, 4–7 mm. Fruits ellipsoid, compressed, 4–6 mm; valves densely pubescent, trichomes appressed; ovules 2 per ovary; style 2–3.5 mm. Seeds flattened, (oval).
Phenology: Flowering late May–Jun.
Habitat: Gray, argillaceous shale outcrops with sagebrush and junipers
Elevation: 2300-2600 m
Discussion
Of conservation concern.
Physaria pulvinata is known from an area surrounded by a pygmy forest of Utah juniper in Dolores and San Miguel Counties.
Selected References
None.