Borrichia frutescens (L.) DC.
Sea oxeye, bushy seaside tansy
This salt-tolerant member of the aster family is found in saltwater marshes, tidal flats, and lagoons. It is native to the southeastern United States.
Plants: These shrubby plants form colonies. Plants are 2–4′ (60–121 cm) high.
Leaves: Leaves are fleshy, opposite, gray-green, obovate, and fuzzy, with fine hairs on both sides, 2–4″ (5–10 cm) long.
Flowers: Flowers are yellow, appearing July-August. A single flower appears atop each stem. Each flower has 15-30 yellow rays and brownish-yellow flowers in the central disc. The central disc contains 20-75 ray florets.
Fruits: Ray flowers fall off, leaving a central brown dome of sharp projections. A single barely noticeable 4-sided achene, shaped like a pointed tooth and 1/16–⅛″ (3–4 mm) long, is produced in each flowerhead.
Habitats: Saltwater marshes, tidal flats, and lagoons.
Online References:
Www.usm.edu (Propagation guide)
4/13/2015 · Flamingo Campground, Everglades National Park, Florida · ≈ 6 × 4½″ (14 × 11 cm) 
4/12/2015 · Biscayne National Park, Florida City, Florida · ≈ 4½ × 4″ (12 × 10 cm) 
4/12/2015 · Biscayne National Park, Florida City, Florida · ≈ 10 × 7″ (25 × 16 cm) 
4/13/2015 · Flamingo Campground, Everglades National Park, Florida · ≈ 9 × 6″ (22 × 16 cm) 
4/12/2015 · Biscayne National Park, Florida City, Florida · ≈ 7 × 5″ (17 × 12 cm) 
4/13/2015 · Flamingo Campground, Everglades National Park, Florida · ≈ 6 × 4½″ (16 × 12 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 | 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 | Borrichia | For Danish botanist Olaf Borrick |
| Species | frutescens | “Shrubby” |
Borrichia frutescens description by Thomas H. Kent, not updated.
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