COTTSIA GRACILIS below | CALLIANDRA ERIOPHYLLA here.
FAMILY: Malpighiaceae — Malpighia family
SYNONYMS: Janusia gracilis
OTHER COMMON NAMES: Slender Janusia
ETYMOLOGY: The genus Cottsia is an anagram based on the name of Scottish botanist George Francis Scott Elliot (1862–1934).
The species name derives from the Latin gracile, or 'slender'.
GEOGRAPHIC RANGE: Found from southern AZ to western TX, into northern Mexico
HABITAT: Dry, rocky slopes and arroyos, 1,000-5,000'
BLOOMING SEASON: Blooms April to October, depending on rainfall
DESCRIPTION: Perennial twining vine, 2' tall when unsupported but climbing to 10' when supported by other plants.
Mutualistic associations: New World plants in the Malpighia family have oil-producing glands on the undersides of the petals and offer this oil to pollinators instead of nectar. Oil-collecting bees with specialized hind legs scrape up the oil from these glands and return it to their hives where it is mixed with pollen to feed the larvae or used as protective lining for the brood cells.