Calycadenia spicata

(c) Gary Griffith, some rights reserved (CC BY-NC-ND) via iNaturalist

Species

Spiked Western Rosinweed

Calycadenia spicata

Calycadenia spicata is a resilient perennial with striking yellow flowers, native to western U.S. grasslands.

Also known as: Spiked Western Rosinweed

Calycadenia spicata, commonly known as Spiked Western Rosinweed, is native to the western United States, particularly thriving in the grasslands and open areas of California and Nevada. This perennial herbaceous plant typically reaches a height of 1 to 3 feet, exhibiting an upright growth habit with a somewhat bushy form. The leaves are narrow and linear, often covered in fine hairs, which help reduce water loss in its native arid environments. The striking flowers, which bloom from late spring to early summer, are characterized by their bright yellow ray florets surrounding a central disk, attracting a variety of pollinators, including bees and butterflies. The fruit is a small achene that aids in wind dispersal, ensuring the plant’s propagation in suitable habitats.

Ecologically, Spiked Western Rosinweed plays a significant role in its native ecosystem by providing nectar and pollen for pollinators, thus supporting local biodiversity. It is also adapted to survive in dry conditions, making it a valuable species for restoration projects in arid landscapes. Human uses of this plant include its potential in ornamental gardening due to its attractive flowers and resilience. Additionally, its ability to thrive in poor soils makes it a candidate for erosion control in challenging environments. Overall, Calycadenia spicata is a remarkable example of adaptation to its native habitat, showcasing both beauty and ecological importance.

Care Guide

🌱 Hardiness Zone
Zone 5–9
🪨 Soil
well-drained soil
☀️ Light
full sun
💧 Water
moderate moisture
🌿 Fertilization
light feeding recommended

Plant images courtesy of Wikimedia Commons — a free media repository maintained by volunteers worldwide. Thank you — please consider donating ♥

Browse This Plant's Classification

Domain Eukaryota
Kingdom Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Asterales
Family Asteraceae
Genus Calycadenia
Species Calycadenia spicata