CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record penstemon_calcareus - Tue, Nov. 30, 2021 00:50 ET c
Penstemon calcareus
common namelimestone beardtongue
CalPhotos image
more photos
© 1977 Dean Wm. Taylor  Follow image link for photo data.
life formperennial herb
CA Rare Plant Rank
List 1B.3
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.3: Not very endangered in California
state rank
S3?     S3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
global rank
G3?      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (17):
Colton Well (175B) 3411584, Fountain Peak (176A) 3411585, Kelso (201C) 3511516, Wildrose Peak (325D) 3611731, East Of Sand Flat (348A) 3611763, Sand Flat (348B) 3611764, Cottonwood Canyon (348D) 3611753, Wahguyhe Peak (368A) 3611781, Grapevine Peak (368B) 3611782, Thimble Peak (368D) 3611771, Tin Mountain (369B) 3611784, White Top Mountain (369C) 3611774, Saline Peak (370B) 3611786, Waucoba Canyon (371B) 3611788, Hanging Rock Canyon (390B) 3711726, Last Chance Range SW (390C) 3711716, Last Chance Range SE (390D) 3711715
quad data info

Counties, states, regions:
Inyo (INY), San Bernardino (SBD), Nevada (NV)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Joshua tree "woodland" (JTWld)
•Mojavean desert scrub (MDScr)
•Pinyon and juniper woodland (PJWld)/carbonate, rocky
blooming period Apr-May  
elevation range1065 - 2040 meters
See Zoe 5: 152 (1903) for original description.
full namePenstemon calcareus Bdg.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  PECA5 Element Code  PDSCR1L100
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Tue, Nov. 30, 2021 from

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