Ruellia ciliosa Pursh var. cinerascens Fernald
Ruellia humilis sensu Small, non Nutt.
Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. ciliosa (Pursh) R.W. Long var. cinerascens (Fernald) Kartesz & Gandhi
Hairy wild petunia, wild petunia, Carolina wild petunia
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The petunia is at top left. The foreground plant is Cirsium horridulum. · 4/14/2015 · Long Pine Key, Everglades National Park, Florida · ≈ 14 × 10″ (35 × 24 cm) 
| 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 | Lamiales | Aromatic herbs and shrubs, including lavender, lilac, olive, jasmine, ash, teak, snapdragon, sesame, psyllium, garden sage, mint, basil, and rosemary |
| Family | Acanthaceae | Acanthus family, of tropical herbs and shrubs |
| Genus | Ruellia | Named for physician and botanist Jean Ruel, whose translation of Dioscorides, Materia medica, written in 65 AD, became the basis for modern pharmaceutical and herbal writing |
| Species | caroliniensis | Low-growing, humble |
| ssp. | ciliosa | Fringed or ciliate |
| var. | cinerascens | Becoming ashy-gray |
Ruellia caroliniensis ssp. ciliosa var. cinerascens description by Thomas H. Kent, not updated.
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