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sicklepod rockcress

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.

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.

Cauline leaves

(9)15–35, often concealing stem proximally, bases auriculate; uppermost glabrous or ciliate.

Inflorescences

12–50-flowered, fruiting pedicels ascending or horizontal; straight or slightly recurved, 3–10(18) mm, with spreading, mostly simple trichomes, rarely glabrous.

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.

Fruits

ascending or rarely horizontal, not appressed to rachis, not secund, usually curved, 5–13 cm × 1.7–2 mm;

margins parallel, glabrous.

Seeds

uniseriate, 1.5–2 × 1–1.5 mm;

wings continuous, 0.1–0.2 mm wide.

2n

=14.

Boechera sparsiflora

Boechera covillei

Distribution
[WildflowerSearch map]
[BONAP county map]
[BONAP county map]
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.

Source Flora of Oregon, volume 2, page 457
Ihsan Al-Shehbaz
Sibling taxa
B. acutina, B. atrorubens, B. breweri, B. calderi, B. cascadensis, B. cobrensis, B. covillei, B. cusickii, B. davidsonii, B. divaricarpa, B. drepanoloba, B. hastatula, B. horizontalis, B. howellii, B. koehleri, B. lemmonii, B. lyallii, B. microphylla, B. paddoensis, B. pauciflora, B. paupercula, B. pendulocarpa, B. pinetorum, B. platysperma, B. pratincola, B. puberula, B. rectissima, B. retrofracta, B. rollei, B. stricta, B. subpinnatifida, B. suffrutescens
B. acutina, B. atrorubens, B. breweri, B. calderi, B. cascadensis, B. cobrensis, B. cusickii, B. davidsonii, B. divaricarpa, B. drepanoloba, B. hastatula, B. horizontalis, B. howellii, B. koehleri, B. lemmonii, B. lyallii, B. microphylla, B. paddoensis, B. pauciflora, B. paupercula, B. pendulocarpa, B. pinetorum, B. platysperma, B. pratincola, B. puberula, B. rectissima, B. retrofracta, B. rollei, B. sparsiflora, B. stricta, B. subpinnatifida, B. suffrutescens
Synonyms Arabis sparsiflora, Arabis sparsiflora var. sparsiflora, Boechera sparsiflora var. sparsiflora
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