Overview

Distribution

National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Physical Description

Morphology

Description

Perennials, 150–350 cm (rhi-zomatous). Stems erect, glabrous (glaucous). Leaves mostly cauline; mostly alternate; petioles 0–3 cm; blades (light to dark green, 3-nerved distal to bases), lanceolate, 10–20 × 2.5–6 cm, bases ± cuneate, margins entire or subentire, abaxial faces hispid to hirsute, gland-dotted. Heads 3–10. Peduncles (1–)3–15 cm (gland-dotted). Involucres broadly hemispheric, 10–25 mm diam. Phyllaries 25–35 (loose ), lanceolate, 8–15 × 3–5 mm (notably surpassing discs), (margins sometimes ciliate) apices acute to attenuate, abaxial faces hispidulous to glabrate, gland-dotted. Paleae 10–11 mm, 3-toothed (apices acute, hispidulous). Ray florets 12–21; laminae 15–30 mm. Disc florets 50+; corollas 6–8 mm, lobes yellow; anthers reddish to dark, appendages reddish brown. Cypselae 4.5–5 mm, glabrate; pappi of 2 aristate scales 3–4 mm. 2n = 102.
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

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Wikipedia

Helianthus californicus

Helianthus californicus is a species of sunflower known by the common name California sunflower. It is native to California and Baja California, where it grows in many types of habitat. This wild sunflower is an erect perennial growing from a network of tough, woody roots with small rhizomes. It is a sprawling, gangly plant, sending a thin stem to heights between one and three meters or more. The lance-shaped leaves may be 20 centimeters long and are smooth or slightly toothed along the edges. The inflorescence holds several flower heads. Each head is supported by a base covered in long, pointed phyllaries that bend back as the head ages and develops fruit. The flower head has a fringe of golden yellow ray florets, each two or three centimeters long, and a center filled with curly yellow and brown disc florets. The achene is about half a centimeter long.

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