common name: Large-flower mountain-trumpet, Large-flowered collomia, Grand collomia
Abbreviation Code: COGR2
- Kingdom Plantae – Plants
- Subkingdom Tracheobionta – Vascular plants
- Superdivision Spermatophyta – Seed plants
- Division Magnoliophyta – Flowering plants
- Class Magnoliopsida – Dicotyledons
- Subclass Asteridae
- Order Solanales
- Family Polemoniaceae - Phlox family
- Genus Collomia
- Species C. grandiflora Douglas ex Lindl. – grand collomia
General: Annual, the stem simple or branched, erect, 0.5-5 dm. tall, minutely pubescent. Leaves: Lower leaves opposite, petiolate, often toothed when well developed; upper leaves opposite or whorled, entire, usually glabrous, becoming sessile upward, narrowly elliptic or oblong to nearly linear. Flowers: Flowers 1-few on short pedicels in the axils of reduced upper leaves; calyx 5-8 mm. long, 5-lobed; corolla bi-labiate, blue with white or pinkish upper lip, 9-17 mm. long, the tube abruptly bent at a right angle to the calyx, shortly pouched at the bend; stamens 4. Fruit: Capsule opening along 4 lines.
|FloweringTime||April - June|
West of the Cascade summits, British Columbia to California, and in the Columbia River Gorge.
Open, moist to rather dry areas, low to moderate elevations in the mountains. Moist to drier soil – not heat-resistant and requires cool nights.
Sow seeds in both the fall and early spring for the maximum season of flowering.
Seed sample from: 2011
Average measurement: 3 x 1.5 x 1.1
Measurement range: L: 2.75 - 3.1 W: 1.2 x 1.7 D: 0.9 x 1.3
Shape: One end of seed is slightly more rounded than other. This is the hilium end. One side of seed has longitudinal sulcus that does not reach the hilium or opposite apex.
Color: Hilium indistinct. Entire seed surface mostly uniform in color. Seed is brown with some white spots that are flakey looking.
Surface:Entire seed is very bumpy, sometimes slightly ridged. When wet, seed coat forms many clear, mucilaginous threads.
Could be confused with: Gilia capitata
Basic Explanations and Assumptions:
The dimensions for the seeds are length x width x depth. The location of the hilum is used as the base of the seed, and the length is measured from hilum to the opposite apex. Where a style is present, the length is measured from the hilum to the bottom of the style. Width is measured at a right angle to the length at the widest part. Depth is measured at a right angle to the intersection of height and width lines.
Measurements included are the mean average for each measurement of ten separate seeds.
All measurements in millimeters unless otherwise noted.