CalBG:RSA

Calochortus syntrophus Callahan

United States, California, Shasta, The Cove (about 10 miles south of Big Bend) just south of Roaring Creek on the Cove Road; Shasta-Trinity National Forests, 40.8902778 -121.9483333, 534m

CalBG:RSA

Calochortus syntrophus Callahan

United States, California, Tehama, Highway 36 1 mile west from Lassen Lodge, north side of the highway near the junction, Little Giant Mill Road.; Lyonsville, 40.34814 -121.73019, 1158m

CalBG:RSA

Calochortus syntrophus Callahan

United States, California, Shasta, The Cove, near the junction of Cove Road and Roaring Creek. Approximately 3.6 air miles north-northwest of the town of Montgomery Creek.; Roaring Creek 7.5', 526m

OSC:OSU

Calochortus syntrophus F.T.Callahan

United States, California, Tehama, none, 40.3480166666667 -121.728366666667, 1158m

OSC:OSU

Calochortus syntrophus F.T.Callahan

United States, California, Shasta, Roaring Creek 7.5' Quad. area known as The Cove (south of intersection with Roaring Creek). Plants common on site growing on Kilarc (KID) series soils of the Montgomery Creek Formation, habitat area ca. 2 hectares (5 acres).

SBBG

Calochortus syntrophus Callahan

United States, California, Shasta, Cove Rd, just S of Roaring Crk, 40.8903 -121.9483

SPIF

Calochortus syntrophus Callahan

Tehama, Devils Parade Ground 7.5' USGS quad. Found in a large volcanic opening across ridgeline with scattered boulders. Surrounding area scattered manzanitas, adjacent to a mixed conifer forest. Growing with grasses, small herbs. Widely scattered, few dense clusters. Level slopes. No canopy cover. Slight browsing of flowers, leaving only stalks. Petals bright Yellow., 1016m

SPIF

Calochortus syntrophus Callahan

Tehama, Barkley Mountain 7.5' USGS quad. Located ca. 2.84 air miles NE of Flatiron Mountain, SE of Mill Creek. Growing along open ridgeline and NW facing slope in a lower mixed conifer forest. ID'ed by Dr. Dean Taylor.

SPIF

Calochortus syntrophus Callahan

Tehama, Finley Butte 7.5' USGS quad. Along Hwy 36 below the vista point, which is E of Paynes Creek. Growing in a grassy opening amongst the shrubs about 50' below the parking lot. Most of the plants were in fruit., 1026m

SPIF

Calochortus syntrophus Callahan

Tehama, Lyonsville 7.5' USGS quad. On the N side of Hwy 36, just E of Little Giant Mill Rd before the big turn in the highway. Small opening in the forest with Danthonia unispicata, Festuca idahoensis, Arctostaphylos patula, Calocedrus decurrens, Quercus kelloggii, Quercus chrysolepis. Light color clay soils. Nectary shape varies, square, to chevron to upside down chevron (heart), densely-orange-short-hairy. Plants much smaller than as described (12-30 cm).