THIS PAGE IS NO LONGER UPDATED AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Up-to-date information about California vascular plants is available from the Jepson eFlora.
Names are linked to treatments from the Manual
Key to ECHINOCEREUS
N.B.: couplets are linked, e.g., 1. is linked to 1'.
1. Perianth purplish to lavender, closing at night, inner parts generally acuminate or bristle-tipped; anthers yellow; spines glabrous, at least 1 central spine generally angled to flat
1' Perianth orange to red, remaining open at night, inner parts round to notched; anthers pink to lavender; spines < 1 year old puberulent near tip, all ± angled