Capsicum annuum ‘Filius Blue’
Ornamental peppers
Cayenne peppers are natives of southern North America and northern South America. Most of the peppers we eat or grow as ornamentals are cultivated from this species, including anchos, banana peppers, cayennes, de árbols, guajillos, jalapeños, anaheims, Italian sweets, pasillas, peperoncinis, pimentos, poblanos, serranos, and tabascos. (A few, habaneros among them, have other origins.) ‘Filius Blue’ peppers, named for the blue color of the young fruits, are believed to have originated in Mexico.
Plants: Up to 1½′ (45 cm) high, densely branched. They are annuals in cooler climates and woody perennials in warmer ones. (Woody variants are sometimes referred to as Capsicum frutescens, but there is little evidence to support this separate classification.)
Leaves: Oblong-ovate, ovate, or ovate-lanceolate, 1–2″ (2.5–5 cm) long.
Flowers: Purple, about 1″ (2.5 cm) in size, appearing from May to October.
Fruits: Shiny ovals, ½–¾″ (1.3–1.9 cm) around. They are purplish-blue when young, becoming red.
Online References:
CalPhotos at the University of California, Berkeley (Capsicum annuum)
The Lady Bird Johnson Wildflower Center (Capsicum annuum)
Wikipedia (Capsicum annuum)
Flora of North America (Capsicum annuum)
References:
9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 12 × 8″ (31 × 20 cm) 
9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 8 × 5″ (19 × 13 cm) 
9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 17 × 12″ (44 × 29 cm) 
9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 17 × 12″ (44 × 29 cm) 
9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 8 × 5″ (19 × 13 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 | Solanales | Potatoes, eggplants, tomatoes, peppers, tobacco, petunias, sweet potatoes, morning glories, many others |
| Family | Solanaceae | Nightshade or potato family |
| Genus | Capsicum | From Greek κάπτω, kapto, “to bite” |
| Species | annuum | “Annual” |
Capsicum annuum ‘Filius Blue’ description by Thomas H. Kent, not updated.
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