Key to Baileya
View taxon page for Baileya
(For a list of species in Baileya, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Ray flowers 4–8, pale yellow;
involucre Group of bracts more or less held together as a unit, subtending a flower, fruit (acorn cup), or inflorescence.
generally 4–6 mm diam;
heads 2–3
..... B. pauciradiata 1' Ray flowers 15–many, bright yellow; involucre 7–25 mm diam; heads solitary
2. Rays 10–20 mm, widely
linear Elongate, with nearly parallel sides; narrower than elliptic or oblong.
or
oblong Longer than wide, with nearly parallel sides; wider than linear.
, prominently 3-lobed;
fruit cylindric Elongate, with parallel sides and, at any point, round in transverse section.
or barely angled;
ribs ± equal;
peduncles Stalk of an individual flower borne singly, not in an inflorescence, or of an entire inflorescence, or the corresponding structure in fruit; the stalk subtending an involucre (e.g., in Asteraceae, Polygonaceae).
generally 10–30 cm, ± naked, scape-like
..... B. multiradiata 2' Rays 6–10 mm, widely
elliptic In the shape of a flattened circle or ellipse; wider than linear
to obovate, shallowly 3-lobed to
truncate Abruptly (not gradually) narrower or smaller at base or tip, as if cut straight across or nearly so.
; fruit
ribbed and angled; ribs of angles most prominent; peduncles generally 2–10 cm, generally leafy-bracted
..... B. pleniradiata
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