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

Ipomopsis aggregata (Pursh) V. Grant var. aggregata
scarlet gilia
Polemoniaceae (Phlox family)

Introduction to Vascular Plants

© Carla Davis  Email the photographer   (Photo ID #16437)

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Distribution of Ipomopsis aggregata var. aggregata
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Species Information

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Biennial or short-lived perennial herb from a taproot, usually dying after flowering once, reportedly skunky-smelling; stems 1 to several, erect, stalked-glandular upwards or glands replaced by long, spreading, crinkly, white hairs, 20-100 cm tall.
Basil leaves in a rosette, 3-8 cm long, pinnately cleft into 9 to 11 narrow segments, withering by flowering time; stem leaves well developed, reduced upwards, 5- to 7-pinnately cleft, hairless to minutely hairy.
Inflorescence a loose, elongated, 1-sided terminal, panicle-like cluster of several short-stalked, bracted flowers; corollas bright red to orange, 15-35 mm long, the slender tube often yellow-mottled in the throat, abruptly spreading to 5 pointy-tipped lobes 6-13 mm long.
Capsules, 3-chambered, 4-8 mm long; seeds 1 to several per chamber, 2.5-4 mm long, becoming sticky when moistened.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to mesic, often gravelly or rocky slopes, grassy bluffs, meadows and forest openings in the steppe and montane zones; locally common in SC BC; S to MT, CA and MX

Source: The Illustrated Flora of British Columbia


Ecological Framework for Ipomopsis aggregata var. aggregata

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 564 617 671
Slope Gradient (%) 31 47 64
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
90 123 157
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: PP(2)


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

Ipomopsis aggregata subsp. aggregata (Pursh) V.E. Grant

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References