Difference between revisions of "Erigeron cronquistii"

Maguire

Brittonia 5: 201. 1944.

Common names: Cronquist’s fleabane
Treatment appears in FNA Volume 20. Treatment on page 305. Mentioned on page 275, 306.
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name=Erigeron cronquistii
 
name=Erigeron cronquistii
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|authority=Maguire
 
|authority=Maguire
 
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|publication year=1944
 
|publication year=1944
 
|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_658.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V20_658.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Erigeron
 
|genus=Erigeron

Revision as of 20:29, 16 December 2019

Perennials, 1.5–7 cm (cespitose); taprooted, caudices multicipital or branches relatively short and thick. Stems erect (greenish), sparsely and closely strigose, eglandular. Leaves mostly basal (persistent, petioles 2/3–3/4 leaf lengths); blades (greenish) narrowly oblanceolate to oblanceolate-spatulate, (5–)10–40 × 2–4 mm, margins entire (apices rounded to obtuse), faces sparsely strigose, eglandular. Heads 1(–2). Involucres 3–5 × 5–8 mm. Phyllaries in 2–3 series (often purplish), sparsely to moderately hirsute, sparsely to moderately minutely glandular (medially and near apices). Ray florets 10–20(–25); corollas white or light pink, 5–6 mm, laminae not coiling or reflexing. Disc corollas 2.4–3.4 mm. Cypselae 1.5–1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 12–20 bristles. 2n = 18.


Phenology: Flowering May–Jul.
Habitat: Crevices, ledges, and erosion pockets in limestone cliffs, Douglas fir, aspen, mountain brush
Elevation: 1600–3000 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.