Lettuce

Summary plant characteristics

Lactuca species	Plant height (cm)	Type of inflorescence	Florets per head
aculeata	100	Paniculiform	5-25
altaica	50-120	Spiciform; Corymbiform	7-17
azerbaijanica
dregeana	50-180	Paniculiform	12-17
scarioloides	60-120	Corymbiform
serriola	15-250	Racemiform; Paniculiform	7-50
saligna	7-100	Paniculiform; Spiciform	4-16
acanthifolia	30-150	Spiciform; Paniculiform	5
alpestris	5-45
aurea	40-80	Paniculiform	8-18
georgica	75-150	Paniculiform; Racemiform	15
longidentata	100	Pyramidal	5-8
orientalis	10-60		4-5
quercina ssp. quercina	200	Corymbiform	8-22
quercina ssp. wilhelmsiana	100	Thyrsoid	8-22
sibirica	30-100	Corymbiform	20
tatarica	150	Spiciform; Corymbiform	16-23
viminea ssp. chondrilliflora
viminea ssp. ramosissima
viminea ssp. viminea	35-150	Paniculiform	5
virosa ssp. cornigera
virosa ssp. livida		Pyramidal	25
virosa ssp. virosa	200	Pyramidal	15
watsoniana	180	Corymbiform	8