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Montana Field Guide

Montana Field Guides

Calder's Rockcress - Boechera calderi
Other Names:  Arabis calderi


Global Rank: G5
State Rank: SNR

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

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General Description
Biennial or perennial with a simple or rarely few-branched caudex. Stems 10–60 cm, terminal. Vestiture of 3- to 4-branched hairs at the base of the plant. Basal leaves oblanceolate to oblong with entire or dentate margins, 15–40 mm long. Stem leaves lanceolate, auriculate-clasping. Flowers purple, sometimes pale; petals 7–10 mm long . Fruit 2–8 cm × 1–2 mm, erect and appressed to the stem; seeds in 2 rows per locule (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
YT to AB south to CA and WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Sparsely vegetated, often moist soil of open slopes, cliffs, rock slides, open forest; valleys to lower alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Calder's Rockcress — Boechera calderi.  Montana Field Guide.  .  Retrieved on , from