Burke: Collinsia sparsiflora vs. Collinsia heterophylla

	Collinsia sparsiflora	Collinsia heterophylla
	few-flowered blue-eyed Mary, few-flowered collinsia
Habit	Annual, the stems 5-20 cm. tall, erect, simple or branched, glabrous.
Leaves	Leaves opposite throughout, the lower petiolate, broadly elliptic to ovate, the blade up to 1 cm. long, often few-toothed; other leaves linear to linear-lanceolate, becoming sessile upward, up to 3 cm. long and 5 mm. wide.
Flowers	Flowers 1-3 in the axils of reduced upper leaves; calyx 5-11 mm. long, the 5 lobes lanceolate, acute, much longer than the tube, concealing the corolla tube; corolla bi-labiate, blue-lavender to white, 8-11 mm. long, the tube abruptly bent near the base, forming an oblique angle with the calyx, and strongly gibbous on the upper side near the bend; stamens 4, the upper pair of filaments spreading-hairy.
Fruits	Capsule sub-globose, 4-6 mm. wide.

	Collinsia sparsiflora	Collinsia heterophylla
Flowering time	March-April
Habitat	Open slopes, swales, forest edge, and balds.
Distribution	Occurring in the Columbia River Gorge in Washington; south-central Washington to adjacent northern Oregon, east to western Idaho. [WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Threatened in Washington (WANHP)
Sibling taxa	C. grandiflora, C. parviflora, C. rattanii	C. grandiflora, C. parviflora, C. rattanii, C. sparsiflora
Subordinate taxa	C. sparsiflora var. sparsiflora
Web links	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Collinsia sparsiflora

Collinsia heterophylla

few-flowered blue-eyed Mary, few-flowered collinsia

Habit

Annual, the stems 5-20 cm. tall, erect, simple or branched, glabrous.

Leaves

Leaves opposite throughout, the lower petiolate, broadly elliptic to ovate, the blade up to 1 cm. long, often few-toothed; other leaves linear to linear-lanceolate, becoming sessile upward, up to 3 cm. long and 5 mm. wide.

Flowers

Flowers 1-3 in the axils of reduced upper leaves;

calyx 5-11 mm. long, the 5 lobes lanceolate, acute, much longer than the tube, concealing the corolla tube;

corolla bi-labiate, blue-lavender to white, 8-11 mm. long, the tube abruptly bent near the base, forming an oblique angle with the calyx, and strongly gibbous on the upper side near the bend;

stamens 4, the upper pair of filaments spreading-hairy.

Fruits

Capsule sub-globose, 4-6 mm. wide.