Wildflowers of Southern Arizona
Rusby's Primrose.
Primula rusbyi.
Primrose (Primulaceae) Family.
Plant: perennial herb; 7-28 cm tall, upright stems. Leaves: 2-23 cm long, petiolate; blade spatulate or elliptic, generally glandular-pubescent on the lower surface or sometimes glabrous but not mealy, the margins slightly dentate, the teeth gland-tipped (if the margins are entire, the glands terminate the main veins). INFLORESCENCE: a scapose umbel, bracts 2-5 mm long. Flowers: magenta; calyx 3.7-8 mm long, densely mealy-white at least near the base; corolla tube 8-13.2 mm long, the lobes (4-)5-10 mm long; stamens 5, generally attached to the upper portion of the corolla tube; style generally shorter than the corolla tube; ovary superior. Fruit: valvate. Misc: Moist sites in coniferous woods, damp ledges and rock crevices; 2300-3200 m (7500-10500 ft); May-Sep.
Santa Catalina Mountains
Upper Green Mountain Trail
Location: On slope 100 feet beyond saddle.
8/6/16
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