Key to Oxytheca
View taxon page for Oxytheca
(For a list of species in Oxytheca, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Bracts fused around
node 
Position on a stem from which one or more structures (especially leaves, buds, branches, or flowers) arise.
;
leaf 
Organ arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets).
blades glabrous,
margins ciliate 
Having generally straight, conspicuous hairs along margins or edges.
..... O. perfoliata 1' Bracts
free; leaf blades hairy,
glandular, margins not ciliate
2. Involucres peduncled (occasionally sessile) at lower
nodes Position on a stem from which one or more structures (especially leaves, buds, branches, or flowers) arise.
;
bract 
Reduced, leaf- or scale-like structure subtending a branch, cone scale, peduncle, pedicel, or flower.
awns 
1. Bristle-like appendage or elongation, generally terminal. 2. Stiff, needle-like pappus element in Asteraceae.
0.2–0.5 mm; leaf blades 0.1–0.7 cm wide
..... O. dendroidea subsp. dendroidea 2' Involucres generally
sessile 
Without a petiole, peduncle, pedicel, or other kind of stalk.
; bract awns 1–3 mm; leaf blades (0.1)0.5–1.2 cm wide
..... O. watsonii
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