Packera species

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Scientific Name Packera millelobata (Senecio millelobatus) USDA PLANTS Symbol
PAMI26
Common Name Uinta Ragwort ITIS Taxonomic Serial No.
565367
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
Native
Scientific Name Packera obovata (Senecio obovatus) USDA PLANTS Symbol
PAOB6
Common Name Golden Groundsel, Round-leaf Groundsel ITIS Taxonomic Serial No.
565368
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
Native
Scientific Name Packera tampicana (Senecio tampicanus, Senecio imparipinnatus) USDA PLANTS Symbol
PATA5
Common Name Great Plains Ragwort, Butterweed, Cut-leaf Groundsel ITIS Taxonomic Serial No.
565376
Family Asteraceae (Sunflower) SEINet Reference
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Description Habitat: Clay or heavy loam soils; open areas, prairies, disturbed areas.
Plant: Erect, smooth annual 6 to 24 inches tall, usually single branched or unbranched stems; sometimes multiple stems.
Leaves: Alternate leaves, 1 to 5 inches long and deeply pinnatifid with wedge-shaped, incised lobes.
Inflorescence: Composite flowers at the top of short stalks forming a large cluster; each flower 1/2 to 3/4-inch across, each with 10 to 14 rays, many disk florets, and about 21 green phyllaries.
Bloom Period: Late March to May.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildlowers of the Texas Hill Country" by Marshall Enquist and "Wildflowers of Texas" by Geyata Ajilvsgi.
Texas Status
Native

© Tom Lebsack 2019