. Plant species of concern and plant associations of Powder River county, Montana . Plant communities; Endangered plants; Rare plants; Botany; Plant conservation. from creeping rhizomes. The 5 to 8 pairs of opposite, linear leaves have prominent midveiiis and whitish bases and are 10 to 25 mm long, about 1 mm wide and come to a shaip point. Foliage is glabrous to sparsely hairy. Stems are white. One to five white flowers are borne at die stem tips (Figures 24, 25) Each flower has 5 petals and a tubular corolla. The calyx is also tubular, witli 5 lobes, tangled long hairs, and 6 to 11 mm lengtl
. Plant species of concern and plant associations of Powder River county, Montana . Plant communities; Endangered plants; Rare plants; Botany; Plant conservation. from creeping rhizomes. The 5 to 8 pairs of opposite, linear leaves have prominent midveiiis and whitish bases and are 10 to 25 mm long, about 1 mm wide and come to a shaip point. Foliage is glabrous to sparsely hairy. Stems are white. One to five white flowers are borne at die stem tips (Figures 24, 25) Each flower has 5 petals and a tubular corolla. The calyx is also tubular, witli 5 lobes, tangled long hairs, and 6 to 11 mm lengtli. Flowering in May-early June. The leaves of Fhlox hoodii are usnally less dian 10 mm long, and tlie leaves of Phlox afyssifolia are 2 to 5 mm wide. Flowers are needed for detemiination, and hybridization between tliese species is reported elsewhere in the range. Distribution: This species is disti'ibuted from eastern Montana and North Dakota, south to Colorado and Kansas. In Montana it is known from Carter, Powder River and Sheridan counties. Plains phlox was only located once in the soutlieastem comer of Powder River County, representing tlie first county record for Figure 24. Illustration of Phlox andicota Habitat: This species occupies sandy soil of grasslands and open pine woodlands on die plains. Most of tJie settings are well-vegetated, yet there is still bare giound. Associated species are mid- successional and usually occupy sandy ecological sites. The single Powder River County population was found in a sandy ecological site, in partially-healed blowout habitats, associated witli prairie sandreed (Calamoxilfa longifoha). sandhills bluestem (Andropogon halhi), lemon scurfpea (Psoralea lojiceofata) and yucca {Yuccaglattcd). Comments: It is an early- to mid-succession species of plains and woodlands subject to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
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Keywords: ., bhl, bookcollectionamericana, bookleafnumber63, booksubjectbotany
