Amaryllis (Hippeastrum), Knight's-star

Kingdom: Plantae > Division: Tracheophyta > Class: Liliopsida > Order: Asparagales > Family: Amaryllidaceae > Genus: Hippeastrum > Species: Hippeastrum hybrid · Amaryllidaceae (Amaryllis family) · Simple, strap-like (lorate), herbaceous evergreen or semi-deciduous monocot foliage

Amaryllis (Hippeastrum), Knight's-star

Species

Hippeastrum x hortorum (or Hippeastrum hybrid)

Leaf Type

Simple, strap-like (lorate), herbaceous evergreen or semi-deciduous monocot foliage

Family

Amaryllidaceae (Amaryllis family)

Shape

Linear-lorate, strap-shaped with an acute to rounded tip

Size

Approximately 12-20 inches long and 1.5-2 inches wide, typical for mature Hippeastrum bulbs indoors

Margin

Entire (smooth, untoothed edges)

Arrangement

Distichous (arranged in two opposing ranks from the top of the bulb)

Rarity

Very Common (extremely popular indoor flowering bulb)

Color & Pattern

Rich, deep green on upper surface with slightly lighter undersides; uniform coloration with no variegation

Venation Pattern

Parallel venation, characteristic of monocotyledons

Texture & Surface

Smooth, slightly glaucous to thick and fleshy (succulent-like), smooth adaxial and abaxial surfaces

Description

Hippeastrum features thick, strap-shaped, arching green foliage emerging directly from a large tunicated bulb. Leaves grow distichously in a fan shape. When flowering, it produces a hollow stem with large trumpet-shaped blooms.

Key Features

Distichous two-ranked fan arrangement, thick strap-like leaves emerging directly from a prominent above-ground bulb, parallel leaf veins.

Habitat

Cultivated potted houseplant; wild parent species originate from tropical and subtropical forest margins and rocky slopes

Geographic Range

Native origin of parent species in Central and South America; widely cultivated indoors globally

Condition Notes

Overall health is Good. Leaves are vibrant green and upright, with minor dry, brown tips on older outer leaves typical of natural maturation.

Interesting Facts

Though commercially sold as 'Amaryllis', these plants actually belong to the genus Hippeastrum, native to South America, whereas true Amaryllis is native to South Africa.

Medicinal & Uses

Primarily ornamental. The plant contains lycorine alkaloids and is not used medicinally in home settings due to toxicity.

Ecological Role

In native habitats, large tubular flowers attract hummingbirds and insect pollinators. Cultivated mainly as an ornamental indoor plant.

Similar Species

True Amaryllis (Amaryllis belladonna), Clivia miniata, Agapanthus, Crinum lily. Clivia leaves are darker, flatter, and wider; Amaryllis belladonna flowers before foliage appears.

Foraging Tips

Not a wild foraging plant; typically grown in indoor containers or outdoor garden beds in USDA zones 8-11.

Toxicity Warning

Moderately Toxic to humans, dogs, and cats. All parts, especially the bulb, contain toxic alkaloids like lycorine causing vomiting, salivation, and diarrhea if ingested.

Identified on 7/26/2026
Amaryllis (Hippeastrum), Knight's-star | Leaf Identifier