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Peritoma jonesii
Peritoma jonesii (J. F. Macbride) H. H. Iltis
Jones Bee-plant, Jones Spiderflower
Capparaceae (Caper Family)
Synonym(s): Cleome jonesii, Cleome lutea var. jonesii
USDA Symbol: PEJO
USDA Native Status: L48 (N)
"Annuals, 50-100(-200) cm. Stems sparsely branched distally; glabrous or glabrate. Leaves: petiole 1.5-4.5 cm; leaflets 5, (proximal ones sometimes early deciduous), blade linear to elliptic, 1.5-4(-6) × 0.4-1.3 cm, margins serrate , apex long-acuminate, surfaces glabrous. Racemes 1-3 cm (6-40 cm in fruit); bracts unifoliate, obovate to spatulate, 2-15 mm. Pedicels 7-15 mm. Flowers: sepals persistent, connate ca. 1/2 of length, yellow, lanceolate, 1.6-2.6 × 0.8-1.2 mm, margins denticulate, glabrous; petals golden yellow, oblong to ovate, 10-13 × 2-4 mm; stamens yellow, 20-30 mm; anthers 1.9-2.6 mm; gynophore 15-25 mm in fruit; ovary 3-6 mm; style 0.5-0.8 mm. Capsules not inflated, 40-60 × 2-5 mm, striate. Seeds 15-30, gray to black, triangular (sharply angled), 3-4 × 2.5-3 mm, rugose." (Webref: 3).
"Often treated as a variety of Peritoma lutea, P. jonesii grows at lower elevations, has a more southerly (though overlapping) range (T. H. Kearney and R. H. Peebles 1960), and differs in morphological features. Most notable are its larger, showier flowers and longer capsules." (Webref: 3).
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Plant Characteristics
Duration: AnnualHabit: Herb
Leaf Arrangement: Alternate
Leaf Complexity: Palmate
Leaf Shape: Elliptic , Linear
Leaf Pubescence: Glabrous
Leaf Margin: Serrate
Leaf Apex: Acuminate
Inflorescence: Axillary , Raceme , Terminal
Fruit Type: Capsule
Size Notes: Usually to about 3 feet (occasionally, up to six feet) in height.
Leaf: "Leaves: petiole 1.5-4.5 cm; leaflets 5, (proximal ones sometimes early deciduous), blade linear to elliptic, 1.5-4(-6) x 0.4-1.3 cm, margins serrate , apex long-acuminate, surfaces glabrous. " (Webref: 3)
Flower: "Racemes 1-3 cm (6-40 cm in fruit); bracts unifoliate, obovate to spatulate, 2-15 mm. Pedicels 7-15 mm. Flowers: sepals persistent, connate ca. 1/2 of length, yellow, lanceolate, 1.6-2.6 x 0.8-1.2 mm, margins denticulate, glabrous; petals golden yellow, oblong to ovate, 10-13 x 2-4 mm; stamens yellow, 20-30 mm; anthers 1.9-2.6 mm; gynophore 15-25 mm in fruit; ovary 3-6 mm; style 0.5-0.8 mm. " (Webref: 3)
Fruit: "Capsules not inflated, 40-60 x 2-5 mm, striate. Seeds 15-30, gray to black, triangular (sharply angled), 3-4 x 2.5-3 mm, rugose." (Webref: 3)
Bloom Information
Bloom Color: YellowBloom Time: Jun , Jul , Aug
Distribution
USA: AZ , CANative Distribution: "Arizona, California; Mexico (Baja California)." (Webref: 3).
Native Habitat: "Dry sandy flats, desert scrub, roadsides; 300-1200 m." (Webref: 3).
Growing Conditions
Water Use: LowLight Requirement: Sun
Soil Moisture: Dry
Drought Tolerance: High
Heat Tolerant: yes
Soil Description: "Dry sandy flats, desert scrub, roadsides." (Webref: 3).
Propagation
Propagation Material: SeedsWeb Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Additional resources
USDA: Find Peritoma jonesii in USDA PlantsFNA: Find Peritoma jonesii in the Flora of North America (if available)
Google: Search Google for Peritoma jonesii
Metadata
Record Modified: 2022-07-28Research By: Joseph A. Marcus