The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the StateGleason, Henry A. (Henry Allan)
Science
The Plants of Michigan: Simple Keys for the Identification of the Native Seed Plants of the State
Gleason, Henry A. (Henry Allan)
Plants -- Michigan
77b. Leaves lobed only at the base (5-10 dm. high; flowers yellow,
summer) --93a.
77c. Leaves pinnatifid (2-8 dm. high; flowers yellow) --172.
78a. Bracts of the involucre dry and chaffy, at least at the tip;
plants always pubescent and usually white-woolly --79.
78b. Bracts of the involucre green or colored, but never dry and
chaffy --90.
79a. Pappus none; heads 3-4 mm. wide, in ample panicled spikes (flowers
yellowish, late summer) --74b.
79b. Pappus a minute ring or crown; leaves crenate (5-10 dm. high;
flowers yellow, summer) --93a.
79c. Pappus of hairs; heads in flat-topped clusters or slender spikes
--80.
80a. Heads sessile or subsessile in small flat-topped clusters;
flowering in spring or early summer; principal leaves basal
(1-4 dm. high; flowers white or purplish) (Everlasting) --81.
80b. Heads in terminal spikes (2-6 dm. high; flowers purplish,
summer) =Cudweed, Gnaphalium purpureum.=
80c. Heads in small or large flat-topped clusters, flowering in
summer or autumn; principal leaves on the stem --88.
81a. Stolons from the basal rosette of leaves leafy throughout and
ascending at the tip --82.
81b. Stolons prostrate throughout, leafy only at the tip --87.
82a. Basal leaves 2-5 cm. long, 1-nerved --83.
82b. Basal leaves 5-12 cm. long, 3-nerved --84.
83a. Basal leaves spatulate or oblanceolate, smooth above
=Everlasting, Antennaria canadensis.=
83b. Basal leaves obovate, pubescent above
=Everlasting, Antennaria neodioica.=
84a. Basal leaves smooth above
=Everlasting, Antennaria parlinii.=
84b. Basal leaves dull green and pubescent above --85.
85a. Heads 6-8 mm. high =Everlasting, Antennaria plantaginifolia.=
85b. Heads 8-11 mm. high --86.
86a. Leaf-blade ovate or obovate
=Everlasting, Antennaria fallax.=
86b. Leaf-blade spatulate, with rounded tip
=Everlasting, Antennaria occidentalis.=
87a. Styles crimson =Everlasting, Antennaria neglecta.=
87b. Styles pale yellow =Everlasting, Antennaria petaloidea.=
88a. Erect; involucral bracts pearly white (4-9 dm. high)
=Pearly Everlasting, Anaphalis margaritacea.=
88b. Erect; involucral bracts dull white or pale brown, somewhat
pubescent (4-8 dm. high) (Cudweed) --89.
88c. Diffusely branched; heads in dense clusters; bracts brown (1-2
dm. high) =Cudweed, Gnaphalium uliginosum.=
89a. Leaves decurrent on the stem =Cudweed, Gnaphalium decurrens.=
89b. Leaves not decurrent on the stem
=Cudweed, Gnaphalium polycephalum.=
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