Araceae: Arum Family

Calla-lily – Zantedeschia aethiopica

Blooms:

Mar–May

Plant Height:

< 1 m

Flower Size:

Large

Origin:

South Africa

Invasive?

Yes – limited

Habitat:

Moist places

Notes:

Widely cultivated, occasionally escaping and naturalizing.  A dramatic flower with a broad, curved white spathe surrounding the short yellow spike which is the actual flower.

Lesser Duckweed – Lemna minor

Blooms:

n/a

Plant Height:

 

Floating on water surface

 

Origin:

Native

Habitat:

Ponds and streams

Notes:

Very common form of pondweed which is pale to dark green.  The plant body is not differentiated into stems and leaves.  In this form the elliptic-obovate plant body appears in 2s or 3s and is  2–5 mm long.  Least Duckweed (Lemna minuta) is similar but the plant body comes in 2s and is 1–2.5 mm long.