Flora of North America species comparison

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Frasera speciosa

deer's-ears, elkweed, frasera, giant frasera, monument plant
Habit Herbs monocarpic, 5–20 dm, glabrous or stems and leaves puberulent.
Stems

1.
Leaf

blades not white-margined;

basal spatulate or oblanceolate to elliptic-obovate, 7–50 × 1–15 cm, apex rounded to acute;

cauline leaves whorled, blade oblong-lanceolate.
Inflorescences

elongate, open proximally, ± dense distally.
Flowers

calyx 10–25 mm;

corolla pale yellowish green, purple-dotted, occasionally suffused with purple distally, 12–25 mm, lobes elliptic-oblong to obovate, apex [obtuse or] acute to short-acuminate;

androecial corona scales 7–9 mm, deeply multicleft;

style slender, distinct;

nectaries and foveae 2 per corolla lobe, foveae narrowly elliptic, opening directly adaxial to nectary, each opening with a ± even fringe all around, the pair opening into a green but not rimmed area on the corolla surface.
2n

 = 78.

Frasera speciosa
Phenology Flowering summer.
Habitat Open woods, montane to sub­alpine meadows.
Elevation 1500–3500 m. (4900–11500 ft.)
Distribution
from FNA
AZ; CA; CO; ID; MT; NM; NV; OR; SD; TX; UT; WA; WY; Mexico (Nuevo León, Tamaulipas)
[WildflowerSearch map]
[BONAP county map]
Discussion

Swertia radiata var. maderensis Henrickson, endemic to Mexico, is conspecific with Frasera speciosa, but the necessary combination in Frasera has not been published. If that is done, our material will become var. speciosa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 14.
Parent taxa Gentianaceae > Frasera
Sibling taxa
F. ackermaniae, F. albicaulis, F. albomarginata, F. caroliniensis, F. coloradensis, F. fastigiata, F. gypsicola, F. montana, F. neglecta, F. paniculata, F. parryi, F. puberulenta, F. tubulosa, F. umpquaensis
Synonyms F. macrophylla, Swertia radiata, Swertia radiata var. macrophylla, Tesseranthium radiatum, T. speciosum
Name authority Douglas ex Grisebach in W. J. Hooker: Fl. Bor.-Amer. 2: 66, plate 153. (1837)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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