Sensitive Partridge Pea Flower Sensitive Partridge Pea Flower Sensitive Partridge Pea Stem Sensitive Partridge Pea Stem Sensitive Partridge Pea Leaves Sensitive Partridge Pea Gland Sensitive Partridge Pea Plant

Wildflowers of Southern Arizona


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Sensitive Partridge Pea.
Chamaecrista nictitans.
Bean (Fabaceae) family.

Duration: Annual. Nativity: Native. Lifeform: Subshrub. General: Slender stemmed annual to 50 cm tall, stems covered in dense hairs. Leaves: Alternate, pinnately compound leaves, each leaf divided into 10-25 narrow oblong leaflets with small spines on the tips; stalked gland on petiole, just below last pair of leaflets; leaves fold when disturbed. Flowers: Short axillary pedicels bearing irregular yellow flowers up to 1.4 cm wide, 5 petals, lower petal larger and more spreading. Fruits: Legume. Ecology: Found in open woods, prairies, thickets, and on wet shores; 3,500-5,000 ft (1067-1524 m). Distribution: Most of eastern US, from MI to ME, south to FL, west to AZ; south to s MEX, and in S. Amer.; Australia and Asia. Notes: With this species try touching the leaves which will gently reflex and close. Also distinct by being an erect annual with pinnately compound leaves with many leaflets; yellow flowers; the shape of the pods, being flat and having straight, almost parallel sides and an end which is mostly straight and slants back (see pics). Ethnobotany: Used medicinally for endurance and given against fainting spells. Etymology: Chamaecrista come from Greek chamae, dwarf and crista for cross..

Santa Catalina Mountains.
Molino Basin
Location: Shoulder of campground road
9/13/17

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