For Pea Family plants in Sabino Canyon, we're going to use Anne Green's approved method of identification, namely:
Two of three, must be a pea.
Remember the three Fs? Foliage, Flower, Fruit? If (at least) two of them display typical pea characteristics, we can say with confidence that the plant in question is in the Pea Family.
(Does this method always work? Nope. But it works at least 90% of the time on plants in Sabino and in Tucson.)
What are these characteristics, you ask?
Foliage: line down the middle, leaf on either side
Flowers: 5 petals; banner, wings, keel
Tomorrow, I'll show examples of the typical pea foliage.