1	"Lemma teeth unequal, central tooth longest"	2
1	"Lemma teeth +- equal"	4
2	"Lemma 6--7 mm, teeth awned, awns > 1 mm; fruit +- 2.5 mm"	"Orcuttia viscida"
2	"Lemma <= 5 mm, teeth sharp-pointed or awned, awns < 0.5 mm; fruit <= 2 mm"	3
3	"Plant sparsely hairy; stem generally prostrate; spikelets well separated on axis below, crowded toward tip; SCo, WTR, SnGb, PR"	"Orcuttia californica"
3	"Plant conspicuously hairy, +- gray; stem erect or +- spreading; spikelets crowded, inflorescence +- head-like; c SNF, SnJV"	"Orcuttia inaequalis"
4	"Stem generally prostrate; fruit 1.5--2 mm"	"Orcuttia californica"
4	"Stem erect, ascending, or decumbent; fruit 2--3 mm"	5
5	"Stem branching only at lower nodes; upper spikelets densely crowded, lower well separated; plant generally densely hairy"	"Orcuttia pilosa"
5	"Stem often branching from upper nodes; spikelets +- evenly spaced, not densely crowded; plant sparsely hairy"	"Orcuttia tenuis"