What’s a dichotomous key?
Help
Iridaceae
See list of 3 genera in this family-
1a. Styles broad, petaloid, with paired crests at the apex [Fig. 137]; anthers concealed, appressed to abaxial surface of style branches; sepals, petals, stamens, and carpels adnate at the base forming a floral tube that surmounts the ovary (in part)
-
1b. Styles not petaloid, without crests; anthers visible, not appressed to style branches; sepals, petals, stamens and carpels not adnate near base (though Crocus with basally connate tepals)
-
2a. Plants without aerial stems; fruit borne at or even below the ground level; tepals with an elongate, basally connate portion
-
2b. Plants with evident, above-ground stems; fruit borne well above ground level; tepals distinct or with a very short (i.e., discernable only with close observation) basally connate portion
-
3a. Leaf blades 10–20 mm wide; tepals light orange to red (rarely yellow); filaments distinct (in part)
-
3b. Leaf blades 0.8–5 mm wide; tepals white to blue or blue-violet; filaments basally connate
-
-
Show photos of:
Each photo represents one genus in this family.