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bristly-leaved rockcress

Habit Plants biennial or short-lived perennial; with or without caudices.
Stems

2–8(10) dm, glabrous or rarely lower parts with few simple trichomes.

Basal leaves

oblanceolate, 3–8(13) mm wide;

margins entire or denticulate, ciliate and pubescent with simple trichomes; these often mixed with short-stalked, 2- or 3-rayed trichomes.

Cauline leaves

6–30(45), often concealing stem proximally, bases auriculate; uppermost ciliate or sparsely pubescent.

Inflorescences

10–30(50)-flowered, fruiting pedicels reflexed, abruptly recurved at bases but otherwise straight, 4–10 mm, glabrous.

Flowers

sexual, pendent at anthesis;

sepals pubescent;

petals 3–4 × 0.7–1.2 mm, white;

pollen ellipsoid;

ovules 46–80 per ovary;

styles 0.2–0.8 mm.

Fruits

strongly reflexed, appressed to rachis, not secund; straight, 5–9 cm × 1.8–2.5 mm;

margins parallel, glabrous.

Seeds

uniseriate, 1.8–2.1 × 1–1.5 mm;

wings continuous, 0.2–0.3 mm wide.

Boechera rectissima

Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

Rocky slopes in open conifer forests. Flowering May–Jul. 1300–1700 m. ECas, Sisk. CA, NV. Native.

Source Flora of Oregon, volume 2, page 456
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. retrofracta, B. rollei, B. sparsiflora, B. stricta, B. subpinnatifida, B. suffrutescens
Synonyms Arabis rectissima, Arabis rectissima var. rectissima
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