Which plants do not have a flower?

Answer 1

Male flowers do not produce seeds.

When plants have specialized male and female flowers, the male flowers only produce pollen. Only the female flowers produce seeds.

Other reasons why a flower might not produce seeds:

The flower may look all right but be flawed or underdeveloped.

Over-specialized plants may depend on only one agent to carry their pollen. If that insect or bird or other animal disappears from the area, all those flowers will bloom and wither without producing any seeds.

Some flowers don't produce seeds because the plant is sterile. When botanists cross-breed plants, the hybrids sometimes end up with odd numbers of chromosomes and the plants cannot reproduce - but they can flower.

Answer 2

far too many to list, but for a short list of interesting species:

Dendrophylax lindenii ( the ghost orchid)

Chiloschista spp. ( the Chinese ghost orchids)

most cacti.

and raflessia arnoldii

Answer 3

Conifers, ferns, mushrooms, algae, kelp, and seaweed do not have a flower.

Answer 4

Pistilate flowers in the members of family Cucurbitacae & Euphorbiaceae

Answer 5

willow flower has no sepals and petals

Answer 6

Rose

daisy

tulips

Answer 7

Grass family (Poaceae)

Answer 8

A daisy.