Astragalus barrii Barneby
Annotated by Barneby, 28 May 1976.

Montana: Rosebud County: [locality and coordinates withheld; status in Montana: S3 (Rare; MTNHP)],
Slope 10%, easterly exposure. Site-type: sandstone hillslope. community: Pinus ponderosa- Andropogon scoparius knoll. A. entire axillary (peduniculate) flower, blue to purple 11 mm long; pedicels 3mm long; b. calyx ebraeteate; 5-6 mm long, tube 3-4mm, teeth 1-1 1/2 mm; silky villous; c. banner petal 10-11mm long; d1 and d2. wing petals 8-9mm long- more than keel petal. e. keel petal not pointed, 7mm long; purple topped. f. dicdelphour stamens 9 +1; g. pistil; hairy; h. portion of leafy stem; leaves compound trifoliolate with basifixed pubescenec, entire; stipules not united opposite petisle. Leaflets shown are smaller than the average on the entire plant. Phenology: Flowers.

Patrick L. Platenberg 1, May 28, 1976
MONT, Accession: 74730