Eastern Mojave Vegetation Coll. No. 2580, Penstemon procerus var. procerus.  
 

 

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  Plantaginaceae Penstemon procerus procerus
Photographed 8 December 2021.

Plants of Colorado
Plantaginaceae

Penstemon procerus Douglas ex Graham var. procerus.  Pincushion Beardtongue.

Lily Lake, Lake County, Colorado. North side of Lily Lake, on sloping ground down to North Fork West Tennessee Creek, near the end of the Pike-San Isabel Forest Road 131, 2.8 road miles west of US Highway 24, 140 km. southwest of the GNIS location of Golden. 39.3518N, 106.3674W. WGS 1984 Elev. 3231 m. Also collected here: Bistorta bistortoides, Arctostaphylos uva-ursi, Erigeron glacialis, and Taraxacum officinale.

Collected by permit: Pike - San Isabel National Forest, 2021, issued: Mar 29, 2021, to: Tom Schweich.

Tom Schweich 2580. 13-Jul-2021

Coll. No. 2580, 12 July 2021, characters observed: Perennial herb, to 20 cm., caulescent, ascending; Leaves, cauline, opposite, lower, petiole 23 mm. + blade 39 mm. × 10 mm. wide = 62 mm., elliptical, entire, glabrous, upper, sessile, 22 mm. × 4 mm. wide, lance-linear, entire, glabrous; Inflorescence, barely hispid but not frankly glandular, verticillasters, #1-4, symmetrical, densely flowered; Flowers, some reflexed or “declining,” 6 mm., blue, stamens, staminode, and style all crowded in throat; Calyx, 4 mm., lobes mostly free, green center with erose chartaceous margins; Corolla, 5.5 mm., blue-violet, floor white with blue guides and gold hairs; Stamens, 4; Staminode, tip gold hairy; Anthers, sacs, 0.8 mm., glabrous; Style, persistent; Fruit, capsule, 3.5 mm. × 3 mm. wide.

The short corollas and reflexed or declined flowers suggest P. procerus, whereas the scarious margins of the sepals suggest P. rydbergii (see Weber & Wittmann, 2012).

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Date and time this page was prepared: 7/24/2022 5:23:46 PM