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.
Revision as of 12:05, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

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 +
acute;obtuse +
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 +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
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 +
salverform +
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 />) +
not reflexed +
1 cm10 mm <br />0.01 m <br /> (?) +
tenuinucellate +  and bitegmic +
erect +  and ascending +
purple;rose;purple;rose;pink +
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 +