INDICAS - these are shorter and bushier than sativas.. the leaf structure on them are shorter and broader, with fatter "fingers".. the branches are usually shorter, and the buds are thick and dense.. they finish flowering sooner than sativas.. indicas are good to grow in less than perfect climates because of their shorter flowering times outdoors, and good for indoor grows where space is limited... indica highs can range from relaxed/social to knock you on your ass.. great for a night cap...
SATIVAS - these grow taller and thinner than indicas... the leaf structure shows longer, thinner fingers than that of indicas.. the branches are usually longer, and buds are longer and skinnier and far less densely populated on the plant.. it takes intense light to get true sativa buds to swell to their fullest... sativas take longer to flower, and vary greatly depending on strain... these tend to grow best in warm, sunny places, where the grow season is longer and more stable... they are great for indoors as long make sure you have plently of vertical space as these can greatly increase in size during flowering... the sativa high is an uplifting, energetic, more cerebral high.. great for morning wake and bakes.. according to simpsonsampson420.
https://www.rollitup.org/members/simpsonsampson420-131271.html
I think you are right it is a sativa. Well if the leafs look like a hand with long thin fingers