Are Mimosa's ever yellow?

Joseph H. Kirkbride, Jr. jkirkbri at ASRR.ARSUSDA.GOV
Wed Mar 27 13:00:52 CST 1996

Finn Rassmussen asked if there are any yellow-flowered Mimosias.
According to Rupert Barneby (Mem. New York Bot. Gard. 65: 15.  1991.), "in
color they vary from white or whitish to pink or pink-purple, and in most
species of sect. Calothamnos are cream- or sulfur-yellow.  Field-notes
that record floral coloration in Mimosa usually refer to color of the
filaments, which form the most conspicuous part of the inflorescence at
anthesis, not to the color of the corolla, which varies from greenish or
whitish to dull purplish-pink or less often bright carmine, especially on
the inner face of the lobes."

Sect. Calothamnus has 26 species in southeastern Brasil, Uruguay,
Argentina, Paraguay, and 1 extending into Bolivia (Mem. New York Bot. 65:
313.  1991.).

Joseph H. Kirkbride, Jr.
USDA, Agricultural Research Service
Systematic Botany and Mycology Laboratory
Room 304, Building 011A, BARC-West
Beltsville, Maryland 20705-2350 USA
Voice telephone: 301-504-9447
FAX: 301-504-5810
Internet: jkirkbri at

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