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Montana Field Guide

Montana Field Guides

Hybrid Rockcress - Boechera divaricarpa
Other Names:  Arabis divaricarpa, Arabis x divaricarpa


Global Rank: G5
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
Biennial or short-lived perennial (monocarpic) with a simple caudex.. Stems to 80 cm, terminal. Basal leaves petiolate, oblanceolate, 1–4 cm long. Stem leaves narrowly lanceolate, auriculate-clasping. Vestiture appressed simple and 3-branched hairs on lower stems and basal leaves, glabrous above. Flowers pink to purple; petals 7–11 mm long. Fruit 15–80 mm × 1.5–2 mm, straight to slightly arcuate; pedicels glabrous, spreading at maturity; seeds with an apical wing 0.3 mm wide, in 1 or 2 irregular rows (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
AK to QC south to CA, CO, IA and VT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Often shallow soil of open forest, steppe, grasslands, rock outcrops; montane, lower subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Hybrid Rockcress — Boechera divaricarpa.  Montana Field Guide.  .  Retrieved on , from