Taxon Report

Penstemon calcareus Bdg.

limestone beardtongue

Print Report


Steve Matson 2017

  Classification

Scientific Name:
Penstemon calcareus Bdg.
Common Name:
limestone beardtongue
Family: Plantaginaceae
Element Code: PDSCR1L100
USDA Plants Symbol: PECA5
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Apr-May Apr-May
Elevation: 1065-2040 (3495-6695)
General Habitats: Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland
Microhabitat: Carbonate, Rocky
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 27
Element Occurrence Ranks:
   Excellent (A) 1
   Good (B) 3
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 23
California Endemic:  False
California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)
Quads: Name (Quad Code)
Colton Well (3411584), Columbia Mtn. (3511514), Cottonwood Canyon (3611753), East of Sand Flat (3611763), Fountain Peak (3411585), Grapevine Peak (3611782), Hanging Rock Canyon (3711726), Last Chance Range SE (3711715), Last Chance Range SW (3711716), Saline Peak (3611786), Sand Flat (3611764), Sand Spring (3711725), Thimble Peak (3611771), Tin Mountain (3611784), Waucoba Canyon (3611788), White Top Mtn. (3611774), Wildrose Peak (3611731)

Threat List Data from the CNDDB

Threat List Total: 3
EOs with Threat Listed: Total EOs % of EOs
2 7 %
Foot traffic/trampling 1 3%
Non-native plant impacts 1 3%
Other 1 3%

Notes

See Zoe 5: 152 (1903) for original description.
Threats:
Taxonomy:

Selected References

CRPR List Change on 2006-10-10
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 9 January 2025].