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Arisaema triphyllum

Family
Araceae
Common Name(s)
Jack-in-the-pulpit
Synonyms
This guide also include the very similar Green dragon, Arisaema dracontium
Flowering Time
May
Fruit/Seed Maturation Sign
Berries turn red
Fruit/Seed Collection Dates
Mid August to early September
Notes

Experimental seed addition in a small field study resulted in establishment in 33-46% of plots after three years (Brudvig et al. 2011) (seeds were sown fresh). Transplants in a field study had 88% survival after 7 years (Mottl et al. 2006), suggesting that transplanting could be a successful method of re-introduction. Self-sows and can spread by seed once established (Mottle et al. 2006).

Mature transplants added to a woodland degraded by cattle grazing in Wisconin were "well established" and had reproduced within the eight years that the plants were monitored, but the authors did not report number of years to reproduction (Ellarson and Craven 1982).

Seed output moderate; low vegetative spread (Barkely 1986, Gleason and Cronquist 1991).

 

Jack-in-the-pulpit (Arisaema triphyllum)

Jack-in-the-pulpit fruit (Arisaema triphyllum)

Seed Cleaning
Remove seeds from pulp; otherwise, store fruit in cold, moist sphagnum
Storage
Tolerates dry storage (Cullina 2000), but may not tolerate long-term dry storage, indicated by very poor field germination (Mottl 2000)
Restoration Potential
Medium