Douglasia gormanii

Constance

Amer. Midl. Naturalist 19: 257. 1938 ,.

Common names: Gorman’s dwarf primrose
Endemic
Synonyms: Douglasia arctica var. gormanii (Constance) B. Boivin
Treatment appears in FNA Volume 8. Treatment on page 265. Mentioned on page 264, 266.

Plants tightly cespitose cushions with branched caudex. Stems prostrate to ascending, densely covered with marcescent, imbricate, reddish-brown leaves, and terminal, green leaf-rosettes. Leaves erect, thin; blade linear to narrowly oblanceolate, 1–10 × 0.5–1 mm, margins entire, ciliate, hairs forked or branched, apex acute to obtuse, surfaces densely hairy, often glabrescent, hairs forked and branched. Scapes 1–3 mm in early anthesis, to 2 cm in fruit, densely hairy, hairs branched and stellate. Inflorescences 1-flowered, bracteate, sometimes ebracteate; bract 1, ovatelanceolate, 1–2 × 0.5–1 mm, glabrous. Pedicels absent. Flowers: calyx 3–5 × 2–3 mm, glabrous; corolla rose-pink, limb 5–8 mm diam., lobes 3–5 × 1 mm, margins entire.


Phenology: Flowering early summer.
Habitat: Rocky sites, scree slopes in mountains
Elevation: 300-1800 m

Discussion

Douglasia gormanii occurs throughout the mountains of central and southern Alaska and the Yukon; it is replaced by D. arctica to the north and by D. ochotensis and D. beringenis to the west.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Douglasia gormanii"
violet +  and white +
not connivent +
erose +  and entire +
Sylvia Kelso +
Constance +
attenuate +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
crenulate +  and denticulate +
linear;narrowly oblanceolate +
0.5mm;1mm +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
ovatelanceolate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
5-angled +  and campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
ovoid +  and globose +
Gorman’s dwarf primrose +
constricted +
B.C. +, Yukon +  and Alaska. +
300-1800 m +
operculate +  and capsular +
Rocky sites, scree slopes in mountains +
nectariferous +
ebracteate +, bracteate +  and 1-flowered +
solitary +, involucrate +  and 2-10-flowered +
reddish-brown +
marcescent +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not reflexed +
tenuinucellate +  and bitegmic +
erect +  and ascending +
Flowering early summer. +
Amer. Midl. Naturalist +
elongating +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
oblong +  and 4-angled +
connate +  and distinct +
branched +  and simple +
prostrate +  and ascending +
inflated +
glabrescent +  and hairy +
Douglasia arctica var. gormanii +
Douglasia gormanii +
Douglasia +
species +
reddish-brown +  and green +
perennial +  and annual +
stoloniferous +  and rhizomatous +
cushion +, cespitose +  and plant +