Plant: Subshrub < 40 cm, with slender, sometimes twining, tangled branches
Leaves: leaves opposite, narrow, with dolabriform hairs (affixed at the middle and branching)
Flowers: flowers clawed, petals yellow
Fruit: a pair (sometimes 3) samaras, tinged red.
Notes: flowers have 8-10 oil glands below calyx
References: Kearney & Peebles. Arizona Flora.
W.B. McDougal. Seed plants of Northern Arizona.
ASU specimens.