Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
stĭpŭla, ae, f. dim. [stipes], a stalk, stem, blade, halm; of grain (syn. culmus): frumenta in viridi stipulā lactentia turgent, Verg. G. 1, 315; Plin. 14, 16, 19, § 101; 17, 27, 47, § 260; 18, 18, 47, § 169: e segete ad spicilegium stipulam relinquere, Varr. L. L. 7, § 109 Müll.
Of the stalks of grain left behind in reaping, straw, stubble, Varr. R. R. 1, 53; Ter. Ad. 5, 3, 62; Verg. G. 1, 321; Ov. Am. 1, 8, 90; id. F. 4, 781: in stipulā placidi carpebat munera somni, id. ib. 3, 185; cf. Dig. 50, 16, 30.
Of hay, Varr. R. R. 1, 49, 1.
Of a reed, Verg. E. 3, 27; Plin. 37, 10, 67, § 182.
Of bean-stalks, Ov. F. 4, 725.
Prov.: flammaque de stipulā nostra brevisque fuit, of a quickly extinguished fire, Ov. Tr. 5, 8, 20: postmodo de stipulā magnus acervus erit, id. Am. 1, 8, 90.