Family: Poaceae
delicate bluegrass, more...Sandberg bluegrass
[ Festuca oregona Vasey, morePoa ampla Merr., Poa brachyglossa Piper, Poa buckleyana Nash, Poa canbyi (Scribn.) Howell, Poa confusa Rydb., Poa englishii H.St.John, Poa gracillima Vasey, Poa gracillima var. multnomae (Piper) C.L.Hitchc., Poa incurva Scribn. & T.A.Williams, Poa juncifolia subsp. porteri Keck, Poa juncifolia var. ampla (Merr.) Dorn, Poa laevigata Scribn., Poa nevadensis Vasey, Poa nevadensis var. juncifolia (Scribn.) Beetle, Poa orcuttiana Vasey, Poa sandbergii Vasey, Poa scabrella (Thurb.) Benth. ex Vasey, Poa secunda subsp. juncifolia (Scribn.) Soreng, Poa secunda var. elongata (Vasey) Dorn, Poa secunda var. incurva (Scribn. & T.A.Williams) Beetle, Poa secunda var. stenophylla (Vasey ex Beal) Beetle, Poa stenantha var. sandbergii (Vasey) B.Boivin, Poa tenerrima Scribn.] |
Culms tufted, 4-10 dm, often purplish below, without rhizomes; lvs forming large basal rosettes 15-30 cm high, usually involute and 1-2.5(-3) mm wide, the few cauline ones 5-7 cm; ligule 3-5 mm; infl narrow and ±dense, (7-)9-16(-20) cm, with short, erect branches, at least some of which bear spikelets to near the base; spikelets 2-5-fld; glumes acuminate, often scabrous, the first lanceolate, 2.4-3.7 mm, the second oblong, 2.9-4.5 mm; lemmas 4-5.5 mm, obscurely 5-veined, scarcely keeled, crisp-puberulent on the lower half, sometimes more strongly so on the central and marginal veins, not webbed; rachilla usually finely puberulent at 30 2n=72-106. Dry soil; e. Que.; n. Mich. and Minn. to Man. and Neb., w. to Alas., Calif., and Tex.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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