Species Identification

Interested in the identification of penstemons? Please select a species then click on submit:

AttributeThe current selection is Penstemon_virgatus
ClassificationPenstemon Habroanthus Glabri
GeneralWandbloom Penstemon. Blooms: June to late August or September.
AntherOpen across the connective, slightly exserted from orifice.
Staminodesmooth, narrow, and slightly widened at tip.
Leaves2-12 cm (3/4-4 1/2) long, linear or lanceolate, strap-like, no basal mat, smooth or slightly hairy.
Stems25-80 cm (9 -32) tall, stout, downy or smooth.
InflorescenseCyme 1-3 cm (to 1 ) long, 2-5 flowered. one-sided flowering.
Corolla15-24 mm (1/2-1) long, small to medium, white, pink, blue or purple, very puffy, with red-violet guidelines into the throat which is smooth on the outside, swollen both top and bottom. The lobes project or spread, the lower ones may be reflexed and carry a white beard.
Flower Color
Calyx3-4 mm (<1/4) long, and sepals are broad, ovate, elliptic or obovate with blunt or pointed tips, edges are thinned and somewhat ragged
HabitatMountain meadows, pine woods, and road cuts.
RangeNorth central to southern and western New Mexico. subsp asa-grayii Crosswhite [syn: unilateralis] has narrow upper leaves, to 80 mm (3 1/4) long and 1/7th to 1/9th as wide, lower leaves about as wide as long, herbage is smooth, corolla usually pale blue, anther sacs open very narrowly, habitat is the Rocky Mountains on both sides of the Continental Divide, CO, se WY to NM. subsp virgatus has very narrow leaves, upper leaves to 9 cm (3 ) long and as wide, lower leaves about 1/5 as wide as long that wither at flowering, herbage usually slightly fuzzy, flowers are light blue-purple; habitat is NM to c AZ (s of Grand Canyon).