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Montana Field Guide

Montana Field Guides

Standley's Goosefoot - Chenopodium standleyanum


Global Rank: G5
State Rank: SNR

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

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General Description
Stems erect, branched, 2-6 dm, glabrous. Petiole 0.5-2.5 cm; blade oblong-ovoid to lanceolate, 2-4.5 × 0.5-1.5 cm, base cuneate, margins entire or proximal ones with few teeth, apex acute to acuminate, sparsely farinose. Inflorescences glomerules in terminal and lateral spikes and panicles, 6-15 cm; glomerules irregularly globose, 0.5-2 mm diam., flowers in different stages of development; bracts absent. Flowers: perianth segments 5, distinct nearly to base; lobes obovate, 0.5-0.7 × 0.5-0.7 mm, apex rounded, faintly keeled or not keeled, scarcely farinose, partly covering fruit at maturity; stamens 5; stigmas 2, 0.2 mm. Utricles depressed-ovoid; pericarp nonadherent, smooth. Seeds lenticular, margins round, 0.9-1.3 mm diam.; seed coat black, reticulate-alveolate to smooth (from Welsh, 2003, Fl. North America, Vol. 5).

This species was not included in Lesica (2012).

Range Comments
Reported from one or more old records, not recently confirmed, from Rosebud County (McGregor et al., 1977, Atlas of the Flora of the Great Plains). A voucher might be located at the University of Kansas.

Habitat
Wooded areas (Great Plains Flora, 1986).

References
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Citation for data on this website:
Standley's Goosefoot — Chenopodium standleyanum.  Montana Field Guide.  .  Retrieved on , from