. Plant species of concern and plant associations of Powder River county, Montana . Figurt 20. IIInitiation of Die hanthe dlium o Ugosanthes var. scribiiericumm leaves are short and relatively broad. Leaves are mostly glabrous, but tlie sheatlis sunonnding tlie stem are glabrous to long-haiiy. There is a short fringe of hairs on tlie leaf where it meets tlie stem, which is known as a ligule. The flowers are bonie on short-to long- stalks, which are airanged in a conical inflorescence tliat is 5 to 8 cm high (Figure 21). Inflorescences of tlie main stems are larger than tliose of die branches.
. Plant species of concern and plant associations of Powder River county, Montana . Figurt 20. IIInitiation of Die hanthe dlium o Ugosanthes var. scribiiericumm leaves are short and relatively broad. Leaves are mostly glabrous, but tlie sheatlis sunonnding tlie stem are glabrous to long-haiiy. There is a short fringe of hairs on tlie leaf where it meets tlie stem, which is known as a ligule. The flowers are bonie on short-to long- stalks, which are airanged in a conical inflorescence tliat is 5 to 8 cm high (Figure 21). Inflorescences of tlie main stems are larger than tliose of die branches. Each egg-shaped spikelet has one flower, is abont 3 mm long, and consists of two glumes enclosing a lemma and a palea tliat may or may not be haiiy. Fmit matures in late June - early July. The relatively large, egg-shaped, single-flowered spike lets help identiiy this as Dichwithelun/t. This species branches mainly in the upper portions of the stein, while Diclmiitheluim yvUcoxiaimm usually branches near tlie base. A hand lens or microscope and technical key are needed for positive detenu in at ion. Figure 21. Photograph of Dichanthehum oligosantfies var. scribneriamim eastern United States, extending from southern Canada to Mexico. It is peripheral in Montana, where it is known from both die Flathead Valley and from four records in Powder River County. The latter are all on the Ashland Distiict of Custer National Forest. Habitat: In Montana, this species is only known from open ponderosa pine woodlands of valleys and plains (Figure 22). These woodlands fall
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Keywords: ., bhl, bookcollectionamericana, bookleafnumber61, booksubjectbotany
