Following are all the subumbel like words, in the list below.
UMBELLULE
100% like subumbel
UMBEL
100% like subumbel
UMBELLET
99.99% like subumbel
UNDERPLANT
99.99% like subumbel
UNDERLEAF
99.98% like subumbel
NELUMBIUM
99.98% like subumbel
SUB CLOVER
99.98% like subumbel
SUBCLOVER
99.97% like subumbel
BULBEL
99.97% like subumbel
UMBRACULUM
99.96% like subumbel
UNDERPLANTING
99.96% like subumbel
SUBLEAFLET
99.96% like subumbel
UNDERVEGETATION
99.95% like subumbel
ALABASTRUM
99.95% like subumbel
SEMIFLORET
99.94% like subumbel
COLLUM
99.94% like subumbel
GLUMELLE
99.94% like subumbel
BUTTON
99.93% like subumbel
TUBEROSPHERE
99.93% like subumbel
UMBELLASTER
99.92% like subumbel
HYPOPODIUM
99.92% like subumbel
UMBILICUS
99.92% like subumbel
DOWN
99.91% like subumbel
SUBSCAFFOLD
99.91% like subumbel
HYPANTHIUM
99.9% like subumbel
HYPOCOTYL
99.9% like subumbel
UNDERSTOREY
99.9% like subumbel
PEDUNCLE
99.89% like subumbel
SUBSTEM
99.89% like subumbel
CORYMB
99.88% like subumbel
UNDERSTORY
99.88% like subumbel
BRACTEOLE
99.88% like subumbel
GLUMELLA
99.87% like subumbel
INVOLUCEL
99.87% like subumbel
PETALUM
99.86% like subumbel
LABELLUM
99.86% like subumbel
HYPOPHYLL
99.86% like subumbel
FLOSCULE
99.85% like subumbel
BULBIL
99.85% like subumbel
SOBOLES
99.84% like subumbel
STYLOPODIUM
99.84% like subumbel
SCUTELLUM
99.84% like subumbel
PETIOLUS
99.83% like subumbel
CORONULE
99.83% like subumbel
INVOLUCRUM
99.82% like subumbel
PLUMULE
99.82% like subumbel
AMPULLA
99.82% like subumbel
MIDNERVE
99.81% like subumbel
PETIOLULE
99.81% like subumbel
EMBRYO
99.8% like subumbel
LOBELIAD
99.8% like subumbel
STIPULA
99.8% like subumbel
LAYER
99.79% like subumbel
SECUNDINE
99.79% like subumbel
LEAFULE
99.78% like subumbel
MOLLITURBEL
99.78% like subumbel
HYPOGYN
99.78% like subumbel
EMERGENT
99.77% like subumbel
CALYCLE
99.77% like subumbel
PERIGONE
99.76% like subumbel
PROEMBRYO
99.76% like subumbel
NYMPHAEID
99.76% like subumbel
PERIANTHIUM
99.75% like subumbel
UNIFOLIOLATE
99.75% like subumbel
FLOWERET
99.74% like subumbel
CYMULE
99.74% like subumbel
BUTTRESS
99.74% like subumbel
PLUMULA
99.73% like subumbel
VERTICEL
99.73% like subumbel
LOWER LEAF ZONE
99.72% like subumbel
ADNATUM
99.72% like subumbel
INVOLUCRET
99.72% like subumbel
SYNFLORESCENCE
99.71% like subumbel
SUBHYMENIUM
99.71% like subumbel
HYPSOPHYLL
99.7% like subumbel
THOROUGHWAX
99.7% like subumbel
PREFLOWER
99.7% like subumbel
COLUMN
99.69% like subumbel
MESOCOTYL
99.69% like subumbel
SOBOLE
99.68% like subumbel
SQUAMULA
99.68% like subumbel
BULBOTUBER
99.68% like subumbel
CALYCULUS
99.67% like subumbel
PERULA
99.67% like subumbel
COMPOUND LEAF
99.66% like subumbel
INDUMENT
99.66% like subumbel
HYPERPHYLL
99.66% like subumbel
CYMELET
99.65% like subumbel
ARUNDINOID
99.65% like subumbel
CORCULUM
99.64% like subumbel
COROL
99.64% like subumbel
ANTHELA
99.64% like subumbel
BELLFLOWER
99.63% like subumbel
ANTHOECIUM
99.63% like subumbel
PARASTICHY
99.62% like subumbel
COMPOSITE FLOWER
99.62% like subumbel
SUCCRESCENCE
99.62% like subumbel
MENTUM
99.61% like subumbel
OFFSET
99.61% like subumbel
PLEIOCHASIUM
99.6% like subumbel