Limestone Rockcress

Boechera grahamii (Arabis divaricarpa)

General Status Rank: 
Secure
ELCODE: 
PDBRA40020
Common Name: 
Limestone Rockcress
Scientific Name: 
Boechera grahamii (Arabis divaricarpa)
Synonyms: 
Arabis divaricarpa
Naming References: 
B003
Google image search
Taxonomy
Group: 
Vascular Plant
Kingdom: 
Plantae
Phylum: 
Magnoliophyta
Class: 
Dicotyledoneae
Order: 
Brassicales (Capparales)
Family: 
Brassicaceae
References: 
B036
General Biology

Longevity

biennial
References: 
B003
Habitat
dry sandy or gravelly slopes in mountains
References: 
B003
Distribution

Ecozones

Taiga Plains, Taiga Shield
References: 
B003

Distribution

0.25
Score: 
G
References: 
B003

Number of Occurrences

18(B003); DAO-15; CAN-12 Canadian Museum of Nature records=CAN; Agriculture Canada, Ottawa = DAO; some duplication of records likely exists (H152).another location with Oldham 2014
Score: 
B
References: 
B003
H152

Area of Occupancy

Score: 
-
Threats

Threats

Score: 
C

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
Secure
Status Rank Description: 
Reported as an hybird in NatureServe Explorer (H152).Arabis x divaricarpa (syn Boechera divaricarpa) is excluded from Canada, what is present instead is B. grahamii (FNA) Biotics (NatureServe Explorer) created a nonstandard record for B. grahamii; (Anions)
S Rank: 
S4
Decision Process Description: 
Drafted as exotic by E. Haber in 2004 (H152).; Reviewed in 2010, Secure; Reviewed in 2015 by Marilyn Anions; no change
Last Updated: 
July 23, 2015

References

Ecozones

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Habitat

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Longevity

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Naming

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

NWT Known Subspecies

Marilyn Anions (2005) General Status - review of subset 3 e-mail on 29/03/05. NatureServe Canada, c/o Agriculture and Agri-Food Canada Anionsm /unix [Anionsm@AGR.GC.CA] - H167 Return

Number of Occurrences

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return
  • Erich Haber (2004) Personal Communication- email to S. Carriere on 9/16/2004 with dicot 2.. email archive (printed version in GSR binders) - H152 Return

Range Extent

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Taxonomy

  • McJannet CL, Argus GW and Cody WJ (1995) Rare Vascular Plants in the Northwest Territories. Canadian Museum of Nature Syllogeus 73:1-104. RWED Library Call #QK86.C3M3 - B036 Return