Packera species

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Scientific Name Packera obovata (Senecio obovatus) USDA PLANTS Symbol
Common Name Golden Groundsel, Round-leaf Groundsel ITIS Taxonomic Serial No.
Family Asteraceae (Sunflower) SEINet Reference
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Description Habitat: Shady, moist calcareous soils in valleys and canyons.
Plant: Erect perennial, single unbranched stem 8 to 20+ inches tall.
Leaves: Basal leaves crowded, oval, margins serrate, 3/4 to 3-1/4 inches long, on petioles 2 to 4 times as long as the leaves; sparse stem leaves are narrowly lanceolate or oblanceolate and usually deeply pinnately-lobed and clasping.
Inflorescence: Terminal clusters of 6 to 15 or more yellow composite flowers each 1/2 to 3/4-inch across; 8 to 13+ ray florets and 40 to 50 disk florets; 13 to 21 green phyllaries below, sometimes reddish tips.
Bloom Period: March to May.
References: "Wildflowers of the Texas Hill Country" by Marshall Enquist, "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet.
Texas Status
Scientific Name Packera millelobata (Senecio millelobatus) USDA PLANTS Symbol
Common Name Uinta Ragwort ITIS Taxonomic Serial No.
Family Asteraceae (Sunflower) SEINet Reference
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Description Habitat: Damp calcareous or igneous soils in streambeds and openings; 4600 to 6900 feet in the Chisos and Davis mountains of Texas.
Plant: Weakly erect perennial, 12 to 20 inches tall, single or multiple stems.
Leaves: Basal and lower stem leaves petiolate, 2-3/8 to 4 inches long; upper stem leaves sessile and gradually smaller; blades narrowly lanceolate in outline and deeply pinnatifid with 6+ pairs of lateral lobes with dentate margins.
Inflorescence: Clusters of 6 to 20+ composite flowers at the top of short stalks, with several bright yellow blossoms, 3/4-inch across, each with 8 to 13 rays, 40 to 55+ disk florets, and 13 to 21 green phyllaries with yellow tips
Bloom Period: Late March to early June.
References: Flora of North America
Texas Status

© Tom Lebsack 2019