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Delphinium variegatum

A California-endemic North American perennial in the Ranunculaceae, described by Torrey and Gray in 1838, with tall pubescent stems, pubescent basal and cauline leaves, blue to white spurred flowers in loose, multi-flowered inflorescences, and 3–5 erect follicles with winged seeds, belonging to genus Delphinium.

Is Delphinium variegatum growing in your garden? Record it and all of your plants in Known.

Common Names

Royal Larkspur, Larkspur

Summary

Royal Larkspur is a California-native perennial herb with stems 10–80 cm tall and a pubescent base. Leaves appear mainly on the proximal third, with 0–6 basal leaves and 1–6 cauline leaves; leaf blades are round to pentagonal and pubescent. Open-inflorescence features 4–20 flowers; sepals are usually deep royal blue, with lateral sepals 10–18(–25) × 6–10 mm and spurs 10–19 mm; lower petal blades 4–11 mm. Fruits are 9–19 mm long, and seeds are not echinate, possessing undulate margins.

Three California subspecies occur: the mainland subspecies with dense basal hairs and sepals typically deep royal blue; the island subspecies with white to light blue sepals; and the thornei subspecies with blue to light blue sepals. Toxicity: do not eat any part.

Lifecycle

Perennial

Height

0.5-2.5 feet

Bloom Color

Deep royal blue, blue to light blue or white

References

Delphinium variegatum in Flora of North America @ …. efloras.org.
Delphinium variegatum - FNA. floranorthamerica.org.
Delphinium variegatum | International Plant Names …. ipni.org.
CNH Portal - Delphinium variegatum. portal.neherbaria.org.
Delphinium variegatum Torr. & A.Gray | Plants of t…. powo.science.kew.org.
Delphinium variegatum. ucjeps.berkeley.edu.
WFO Plant List | World Flora Online. wfoplantlist.org.
Delphinium variegatum ssp. variegatum - Calflora. calflora.org.
World Flora Online. worldfloraonline.org. June 2024.