Erigeron filifolius (Threadleaf daisy)

Plants: This perennial daisy’s common name refers to its extremely narrow leaves and nearly bare stems. Plants are 8–40″ (20–101 cm) in height. Stems have dense stiff white hairs.

Flowers: Each stem has a single flower., but stems may be multiply branched, producing flat-topped clusters of ten. Each flower has 15-125 white, blue, pink, or lavendar ray florets, and a yellow center with many disc florets. Flowers appear from May to July.

Fruits: Cypselae are 1/32–1/16″ (1.4–1.8 mm) in size, with a pappus of 20-30 simple hairs.

Habitats: In grassy or open sites, sagebrush plains, or dry slopes; on rocky, lava, or sandy soils; at elevations of 1312–7874′ (400–2400 m).

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Asteridae	A large class that encompasses asters
Order	Asterales	Flowering plants with a central disk flower and surrounding petals, like daisies
Family	Asteraceae	The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
Genus	Erigeron	From Greek eri, “early,” and geron, “old man,” for the fluffy white seed heads and early flowering
Species	filifolius	“With thread-like foliage”

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