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1-celled 5-cleft Achenia achenium acute anthers apex axillary axils base beak bracts branches bristles calyptra calyx capsule carpels clusters common corolla corymbed culm cylindrical cymes deciduous dense dioecious downy drupe elongated entire erect fertile filaments flat fleshy flowers frond fruit glabrous globular glumes hairy heads heart-shaped herbs Illinois imbricated involucre July Kentucky lanceolate leaflets leafy leaves length linear lobes loose many-flowered many-seeded margins membranaceous Michx minute monoecious naked Name narrow nearly northward Nutt oblong oblong-lanceolate obovate obtuse operculum oval ovary ovate ovate-lanceolate ovoid palea panicle Pappus pedicels peduncles perennial perianth perigynia peristome petals petioles pinnate pistillate plant pods pubescent purple Pursh racemes rarely scales scape Seeds sepals serrate sessile sheaths short shorter Shrub simple slender slightly smooth southward species spikelets spikes spreading stalk Stamens Stems sterile stigma style summit tapering teeth terminal toothed Torr umbel upper Virginia Wisconsin woods yellow
Page 88 - ... vexillum or standard, larger than the others and enclosing them in the bud, usually turned backward or spreading ; the two lateral ones...
Page 5 - Hairy, rather low : involucres sessile ; the primary ones 3-leaved, bearing a naked peduncle, and soon a pair of branches or peduncles with a 2-leaved involucre at the middle, which branch similarly in turn ; their leaves broadly wedge-shaped, 3-cleft, cut and toothed : radical leaves 5 to 7-parted or cleft : sepals 5, obovate, white : carpels orbicular.