Which of the following is not an ornamental?

1. Lupine

2. Sweet pea

3. Sunhemp

4. All of these

(1) Muliathi

(2) Petunia

(3) Trifolium

(4) Sweet Pea

(1) Sesbania

(2) Trifolium

(3) Muliathi

(4) All of these

(1) Solanaceae

(2) Brassicaceae

(3) Liliaceae

(4) Fabaceae

(1) Tropics

(2) Subtropics

(3) Temperate zone

(4) All of these

(1) Mostly herbs, shrubs

(2) Rarely small trees

(3) Always aerial stem

(4) Rarely Woody stem

(1) Aerial, erect stem, offset

(2) Cylindrical, branched, solid or hollow

(3) Hairy or glabrous

(4) Underground stem

(1) Alternate

(2) Simple

(3) Pulvinate

(4) Exstipulated 

(1) Solitary

(2) Axillary

(3) Cymose

(4) Racemose

(1) Five petals

(2) United petals

(3) Valvate Aestivation

(4) Epitepalous