Participant Info

Species

Boechera divaricarpa [Boechera grahamii]

Family

Brassicaceae

CommonName

spreadingpod rockcress

Presence

Yes

Status

native

EarliestDate

1935

LatestDate

1952

Ecosystem

foothill, montane, subalpine

Geobotanical

Garitas, SSanjuans

Counties

Conejos, Mineral, Rio Grande, San Juan

Passes

Cumbres, Stony

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTO. There are only five collections, widely dispersed on the west side of the Valley: Del Norte (Rio Grande Co, 1935), Wason Ranch (Mineral Co, 1939), 3 miles W of Creede (Mineral Co, 1939), Conejos River (Conejos Co, 1952), E of Los Pinos pass (Saguache Co, 1998). Note that the more restricted treatment by Al-Shebhaz (FNA) probably would not apply the name Boechera divaricarpa to these plants, since the FNA species by that name is confined to sexual triploid populations containing genomes of B. retrofracta, B. sparsiflora, and B. stricta—a combination not found in Colorado. These Watershed plants may be B. grahamii, or may be something else. It is worthy of note that Ramaley and Johnson found a "B. divaricarpa" in Del Norte, where Haswell [2019, 2021] found a "B. grahamii" there. BONAP shows the species scattered through all the Western states except Arizona and New Mexico. The recorded Watershed locations lie at the southeastern corner of this distribution.

Annotation