Difference between revisions of "Artemisia pattersonii"

A. Gray

in A. Gray et al., Syn. Fl. N. Amer. ed. 2, 1(2): 453. 1886.

Common names: Patterson sagewort
Endemic
Synonyms: Artemisia monocephala (A. Gray) A. Heller Artemisia scopulorum var. monocephala A. Gray
Treatment appears in FNA Volume 19. Treatment on page 520. Mentioned on page 519.
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|accepted_name=Artemisia pattersonii
 
|accepted_name=Artemisia pattersonii
|accepted_authority=A. Gray in A. Gray et al.
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|accepted_authority=A. Gray
 
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|title=in A. Gray et al., Syn. Fl. N. Amer. ed.
 
|title=in A. Gray et al., Syn. Fl. N. Amer. ed.
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name=Artemisia pattersonii
 
name=Artemisia pattersonii
|authority=A. Gray in A. Gray et al.
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|authority=A. Gray
 
|rank=species
 
|rank=species
 
|parent rank=subgenus
 
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|publication year=1886
 
|publication year=1886
 
|special status=Endemic
 
|special status=Endemic
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|tribe=Asteraceae tribe Anthemideae
 
|tribe=Asteraceae tribe Anthemideae
 
|genus=Artemisia
 
|genus=Artemisia

Latest revision as of 19:57, 5 November 2020

Perennials, 8–20 cm, mildly aromatic. Stems gray-brown, glabrate or finely pubescent. Leaves deciduous, gray-green; petiolate; blades (basal) broadly spatulate, 2–4 × 0.5 cm, pinnately lobed (lobes ca. 1.5 mm wide; cauline smaller, 1-pinnately lobed or entire), faces silky-hairy. Heads borne singly or (2–5, spreading to nodding, pedunculate) in paniculiform or racemiform arrays 1–5 × 0.5–1 cm. Involucres broadly hemispheric, 5–8 × 5–8(–10) mm. Phyllaries gray (margins dark brown to black), villous. Florets: pistillate 7–27; bisexual 32–100; corollas (yellow tinged with red), 2–3 mm (including exsert anthers), mostly glabrous (embedded in tangled receptacular hairs). Cypselae 1.5–2 mm, glabrous. 2n = 14.


Phenology: Flowering mid–late summer.
Habitat: Alpine meadows
Elevation: 3500–4000 m

Discussion

Artemisia pattersonii can be distinguished from the closely related A. scopulorum by its heads being borne singly and narrower phyllary margins.

Selected References

None.

Lower Taxa

None.
... more about "Artemisia pattersonii"
Leila M. Shultz +
A. Gray +
Undefined subg. Absinthium +
Patterson sagewort +
Colo. +, N.Mex. +  and Wyo. +
3500–4000 m +
Alpine meadows +
Flowering mid–late summer. +
in A. Gray et al., Syn. Fl. N. Amer. ed. +
Artemisia monocephala +  and Artemisia scopulorum var. monocephala +
Artemisia pattersonii +
Artemisia subg. Absinthium +
species +