E-Flora BC: Electronic Atlas of the Flora of British Columbia

Gayophytum racemosum Torr. & A. Gray
racemed groundsmoke (blackfoot groundsmoke)
Onagraceae (Evening Primrose family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #66975)

E-Flora BC Static Map
Distribution of Gayophytum racemosum
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Species Information

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Annual herb; stems erect, slender, 10-40 cm tall, usually branched below; glabrous or sparsely hairy.
Narrowly linear or linear-oblanceolate, 1-3 cm long, entire, not significantly reduced above.
Inflorescence of axillary clusters, the bracts leaf-like and hiding flowers and fruits, the flowers opening at dawn; petals 4, 1.3-1.8 mm long, white to reddish; sepals 4, bent back, deciduous; largest stamens 0.8-1.5 mm long; ovaries glabrous or glandular fine-hairy.
Capsules, 8-15 mm long, longer than the stalk, erect, slender, flat, glabrous, smooth or very slightly constricted between seeds, the lateral 2 valves not attached; seeds 10-35, erect in chambers, 0.5-0.75 mm long, glabrous to fine-hairy.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry grasslands and open forests in the montane zone; rare in SE BC, known only from Marysville; S to CO and MT.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Gayophytum helleri Rydb.
Gayophytum helleri var. glabrum Munz
Gayophytum humile var. hirtellum Munz
Gayophytum racemosum var. caesium (Torr. & A. Gray) Munz

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References