Cyperaceae - Important

Question 1

Intro to Cyperaceae. Description

Answer 1

Grass-like plants of the order Poales. They have 3 sides stems. Stems of grasses(Poaceae) are cylindrical and hollow (think sugarcane).

Question 2

Three Cyperaceae species.

Answer 2

Cyperus difformis
Cyperus rotundus (She told Maya she's going to ask about this species. God knows what. Wait, god doesn't exist.)
Cyperus esculentus (Chufa! Yum yum!)

Question 3

Let’s try to recall the period of “appearance”, vegetative reproduction, and special threats of the three Cyperaceae species.

Answer 3

C. difformis - Spring - none - short generation period (4-6 weeks from seed to seed)
[Difform - does NOT form rhizome]
C. rotundus and C. esculentus - spring-summer - tubers formed on rhizomes - Geophyte (tubers and rhizomes survive in the soil during bad conditions (winter)). Mechanical control is complicated.
[Chufa obv forms tubers and rotundus suggests something round]

Question 4

Which cyperaceae weeds are herbicide resistant.

Answer 4

C. difformis and C.esculentum are resistant to some herbicides
C. rotundus is not

Question 5

Crops affected by Cyperaceae.

Answer 5

The ones with tubers - C. rotundus and ´C. esculentum affect irrigated crops (rice, corn, vegetables)
C. difformis - RICE, sugarcane, tea