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Naturalized flora of The Morton Arboretum
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Pyrrocoma uniflora var. uniflora
Greene
(redirected from:
Haplopappus uniflorus subsp. howellii
(A.Gray) H.M.Hall)
Family:
Asteraceae
[
Haplopappus contractus
H.M.Hall,
more
Haplopappus uniflorus
Torr. & Gray,
Haplopappus uniflorus subsp. gossypinus
(Greene) H.M. Hall,
Haplopappus uniflorus subsp. howellii
(A.Gray) H.M.Hall,
Haplopappus uniflorus subsp. linearis
D.D. Keck,
Haplopappus uniflorus subsp. typicus
H.M.Hall,
Haplopappus uniflorus var. howellii
(A.Gray) M.Peck,
Haplopappus uniflorus var. uniflorus
(Hook.) Torr. & A. Gray
]
FNA
Resources
David J. Bogler in Flora of North America (vol. 20)
Plants
10-40 cm.
Stems
reddish, tomentose, lanate, or glabrate.
Leaves:
basal blades narrowly to broadly lanceolate, 50-100 × 5-15 mm, margins usually remotely denticulate, rarely laciniate or entire; faces tomentose to glabrate or glabrous.
Heads
usually borne singly, terminal, rarely 1-2 additional proximally.
Involucres
6-9 × 13-18 mm.
Phyllaries
appressed, subequal, outer sometimes shorter.
2
n
= 12.
Flowering May-Sep. Montane pine forests, alkaline meadows, around hot springs; 1400-2900 m; Alta., N.W.T., Sask.; Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wyo.
Variety
uniflora
is the more widespread and variable of the two varieties.
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