Rattlesnake hawkweed is unmistakeable due to the red or purple coloration that follows the outline of the veins of the leaf blades (although this coloration is sometimes absent). This …

Attractive purple-mottled foliage complements striking flowers in summer. Blooms early summer though mid summer. Attracts butterflies. Drought tolerant. Beautiful used in rock gardens, …

The distinctive characteristic of this species is that the veins of these leaves are very thick and often colored a bright purple. In this manner the species is quite variable. The plant grows 1 …

4 天之前 · Two apomictic, stenoendemic species in Hieracium sect. Umbrosa are described from Mt. Babia Góra in the Western Carpathians, southern Poland: Hieracium stanislai (2n = 4x) …

Hieracium venosum, commonly known as the rattlesnake weed, is a flowering plant in the Asteraceae or aster family. This perennial herbaceous plant blooms from May to September …

Hieracium (/ h aɪ. ə ˈ r æ s i əm /), [3] known by the common name hawkweed [4] and classically as hierakion (from ancient Greek ἱέραξ, hierax 'hawk'), [5] is a genus of flowering plant in the …

Hieracium lachenalii 13 Cypselas 2.2-5 mm long, at least the longer achenes narrowed to the tip; flowers 15-40 per head. 14 Stem with several well-developed leaves slightly smaller than the …

Corollas yellow (often each with abaxial red stripe) or orange (drying scarlet to purple); cypselae 1–2.5 mm; pappi of 25–40+, white or sordid bristles in 1 series (plants sometimes stoloniferous)

Common hawkweed is typically found in well-drained, low-nutrient soils. Like other hawkweeds, it can spread aggressively. Its specific epithet (lachenalii) is named for Swiss botanist Prof. …

In my key and descriptions, “piloso-hirsute” refers to surfaces with scattered to crowded, tapered, whiplike, straight or curly, smooth to ± barbellate hairs mostly (0.5–)2–8 (–15+) mm …