Baptisia arachnifera
A federally endangered legume native to Georgia's coastal plain, it is a compact perennial with clasping, silver-grey hairy leaves, short terminal spikes of yellow flowers in early July, cobwebby pubescence, and rattle-seed pods, with habitat loss from pine plantations, timber harvesting, development, incompatible silviculture, herbicide use, and fire suppression threatening its survival.
Common Names
Hairy Rattleweed, Cobwebby Wild Indigo, Hairy Wild Indigo, Wooly Wild Indigo
Summary
Baptisia arachnifera, commonly known as Hairy Rattleweed or Cobwebby Wild Indigo, is an endangered herbaceous perennial native to pine flatwoods along Georgia’s coastal plain, with distribution restricted to Wayne and Brantley Counties. It grows as a clump about 15–32 inches tall and 36–60 inches wide, with stout erect stems densely cloaked in grayish-white, cobwebby hairs; simple, oval to heart-shaped blue-green leaves and terminal racemes of yellow pea-like flowers from June to August, followed by densely hairy, dehiscent seed pods in late summer, with seeds that may rattle inside as pods dry. In cultivation, it favors full sun and sandy, well-drained soils, is drought-tolerant once established, and benefits from a landscape regimen that maintains relatively open canopies; prescribed fire every 2–3 years is recommended to support habitat conditions. It is not for sale and cannot be shipped outside North Carolina; commonly used as a compact, rock garden or edging plant and is valued for its pollinator-friendly flowers that attract bees.
Lifecycle
Perennial
Height
15-32 inches
Spread
3-5 feet
Hardiness Zones
Zones 6a-10b
Sunlight Requirements
Ideally full Sun. Tolerates partial sun.
Soil Type
Sandy, well-drained soil
Soil Drainage
Well-drained soil
Bloom Color
Yellow
Bloom Time
Summer
Foliage Color
Silvery-gray leaves
Fall Foliage Color
White, Blue
Leaf Lifecycle
Deciduous
Seasons of Interest
Spring, Summer, Fall, and Winter
Propagation Methods
Seeds and Cuttings
Attracts Wildlife
Attracts butterflies and other pollinators
Taxonomy
- Taxonomic Rank
- Species
- Author
- W.H.Duncan
- Publication
- Rhodora 46: 29 (1944)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Fabales
- Family
- Fabaceae
- Subfamily
- Papilionoideae
- Genus
- Baptisia