Difference between revisions of "Antennaria howellii subsp. howellii"
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|accepted_name=Antennaria howellii subsp. howellii | |accepted_name=Antennaria howellii subsp. howellii | ||
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|name=Antennaria callilepis | |name=Antennaria callilepis | ||
|authority=Greene | |authority=Greene | ||
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|name=Antennaria exima | |name=Antennaria exima | ||
|authority=Greene | |authority=Greene | ||
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}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Antennaria;Antennaria howellii;Antennaria howellii subsp. howellii | |hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Antennaria;Antennaria howellii;Antennaria howellii subsp. howellii | ||
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name=Antennaria howellii subsp. howellii | name=Antennaria howellii subsp. howellii | ||
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|rank=subspecies | |rank=subspecies | ||
|parent rank=species | |parent rank=species | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_650.xml |
|tribe=Asteraceae tribe Gnaphalieae | |tribe=Asteraceae tribe Gnaphalieae | ||
|genus=Antennaria | |genus=Antennaria | ||
Revision as of 20:20, 16 December 2019
Plants 15–30 cm. Stolons 1–4 cm. Basal leaves 1–3-nerved, spatulate to oblanceolate, 25–40 × 9–12 mm, tips mucronate, faces abaxially tomentose, adaxially green-glabrous. Cauline leaves linear, 20–40 mm, not flagged. Heads 5–12 in corymbiform arrays. Involucres: staminate unknown; pistillate 6–7.5 mm. Phyllaries distally light brown or white. Corollas: pistillate 5–6 mm. Cypselae 1.5–2 mm, notably papillate; pappi: pistillate 6–8 mm. 2n = 56, 84, 140 (under A. neodioica).
Phenology: Flowering mid spring–early summer.
Habitat: Pastures, dry fields, openings in deciduous woodlands and coniferous forests. and rock barrens
Elevation: 0–2200 m
Distribution
Alta., B.C., Ont., Sask., Yukon, Calif., Colo., Idaho, Minn., Mont., Oreg., S.Dak., Utah, Wash., Wis., Wyo.
Discussion
Subspecies howellii is most common in the western half of the range of Antennaria howellii. Based on morphology, this group of apomicts is closely related to A. racemosa of the northern Rockies (R. J. Bayer 1985) and, perhaps, to A. marginata of the southern Rockies.
Selected References
None.