TY  - JOUR
TI  - TEMPORAL VARIATION IN LONGEVITY OF OPUNTIA ENGELMANNII (CACTACEAE) FLOWERS
T2  - Madroño; a West American journal of botany
VL  - 51
UR  - https://www.biodiversitylibrary.org/part/169065
PB  - California Botanical Society
CY  - Berkeley
PY  - 2004
SP  - 280
EP  - 286
AU  - Bowers, Janice E
ER  -