umbrella tree

Short definition from Wiktionary

Noun

1. 1
   An umbrella magnolia (Magnolia tripetala).
2. 2
   An African corkwood (Musanga cecropioides).
3. 3
   An Australian rainforest tree (Polyscias murrayi).
4. 4
   An octopus tree (Schefflera actinophylla).
5. 5
   An Indian almond (Terminalia catappa).
6. 6
   An umbrella thorn (Vachellia tortilis).