Grindelia nuda Alph. Wood var. aphanactis (Rydb.) G.L. Nesom
Curlytop gumweed
Kingdom | Plantae | Plants, but not fungi, lichens, or algae |
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 | Grindelia | Named for David Hieronymus Grindel (1776-1836), a German pharmacologist, physician and professor of botany at Riga, Estonia |
Species | nuda | Naked, bare |
var. | aphanactis | From the Greek aphanes, “inconspicuous,” and actis, “a ray,” thus a head with small ray flowers |
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8/26/2014 · Rte 117, El Malpais National Monument Badlands, El Malpais, New Mexico ≈ 7 × 10" (16 × 25 cm) 

8/26/2014 · Rte 117, El Malpais National Monument Badlands, El Malpais, New Mexico ≈ 8 × 12" (21 × 31 cm) 
Grindelia aphanactis Rydb.
Grindelia nuda var. aphanactis description by Thomas H. Kent, last updated 25 May 2020.
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8/26/2014 · Rte 117, El Malpais National Monument Badlands, El Malpais, New Mexico ≈ 5 × 4½" (13 × 11 cm) 

8/26/2014 · Rte 117, El Malpais National Monument Badlands, El Malpais, New Mexico ≈ 7 × 10" (16 × 25 cm) 

8/26/2014 · Rte 117, El Malpais National Monument Badlands, El Malpais, New Mexico ≈ 10 × 15" (25 × 37 cm) 
Range:

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