Boechera sparsiflora |
Boechera covillei |
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sicklepod rockcress |
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Habit | Plants biennial or short-lived perennial; without woody caudices. | |
Stems | 3–8 dm; lower parts densely pubescent with simple and short-stalked, 2-rayed trichomes to 1.5 mm; upper parts glabrous or sparsely pubescent. |
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Basal leaves | oblanceolate or linear-oblanceolate, 3–12 mm wide; margins entire or rarely dentate, ciliate proximally; surfaces densely pubescent with simple and short-stalked, 2–5-rayed trichomes. |
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Cauline leaves | (9)15–35, often concealing stem proximally, bases auriculate; uppermost glabrous or ciliate. |
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Inflorescences | 12–50-flowered, fruiting pedicels ascending or horizontal; straight or slightly recurved, 3–10(18) mm, with spreading, mostly simple trichomes, rarely glabrous. |
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Flowers | sexual, ascending at anthesis; sepals pubescent; petals 7–13 × 2–5 mm, lavender to purple, rarely white; pollen ellipsoid; ovules 90–170 per ovary; styles 0.1–0.3 mm. |
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Fruits | ascending or rarely horizontal, not appressed to rachis, not secund, usually curved, 5–13 cm × 1.7–2 mm; margins parallel, glabrous. |
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Seeds | uniseriate, 1.5–2 × 1–1.5 mm; wings continuous, 0.1–0.2 mm wide. |
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2n | =14. |
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Boechera sparsiflora |
Boechera covillei |
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Distribution | ||
Discussion | Clay hills, meadows, rocky slopes, sandy soil in sagebrush and mountain shrub communities, open conifer forests. Flowering Apr–Jun. 400–2500 m. BR, BW, ECas, Lava, Owy, Sisk. CA, ID, NV, WA; north to British Columbia, southeast to UT. Native. |
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Source | Flora of Oregon, volume 2, page 457 Ihsan Al-Shehbaz |
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Sibling taxa | ||
Synonyms | Arabis sparsiflora, Arabis sparsiflora var. sparsiflora, Boechera sparsiflora var. sparsiflora | |
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